PDA in Adulthood: What It's Really Like and What Helps

PDA in adulthood: what it's really like, written by two people who live it

Most of what you can find about PDA is written about children. We wanted to write something about adults, because we are both adults who live with it, and because the lack of resources for grown-ups is something we kept bumping into, in our own lives and in our work.

PDA stands for Pathological Demand Avoidance, though a lot of us prefer Persistent Drive for Autonomy, because that name describes what is actually happening. It is a profile often associated with autism, where the nervous system reacts to demands as if they were threats. The important part, and the part most people miss, is that this can happen even when you genuinely want to do the thing.

As children, PDAers may be more outward in their expression, but as they become older, their expression is often concealed by feeling the need to mask their discomfort and needs.That is part of why it gets missed, mislabelled as anxiety, avoidance, or a personality flaw, and why so many adults reach us already exhausted from trying to push through.

This piece is written by two voices. Laetitia is a parent of a PDA child, a PDAer herself, and the founder of Understanding Zoe. Caitlin is a neuroaffirming Accredited Mental Health Social Worker and researcher, a PDAer, and the founder of Cathartic Collaborations. We have noted who is speaking throughout.

Why we wanted to write this together

When lived experience and clinical knowledge sit in the same room, you get a fuller picture than either of us could give alone. One of us knows what a demand feels like from the inside at 7am with kids to get out the door. The other knows what the research says about why the body does that, and what tends to help.

There is a real gap here. Most clinical guidance, and most parenting advice, stops at childhood. PDA North America's 2026 review found that the people identifying with PDA were overwhelmingly adults seeking answers, that 74.6% identified as female, and that fewer than half had a formal autism diagnosis. So we are talking about a large group of adults, many of them undiagnosed, with almost nothing written for them.

What PDA can look like in everyday adult and family life

Laetitia

People assume avoidance means you do not want to do something. For me it is often the opposite. I can really want to do something and still not be able to start it.

It is rarely one big task that tips me over. It is the pile. An unopened email, a form I have not filled, a message waiting for a reply, a decision about dinner. Each one is small and manageable, and I know that, and still my body resists. The demands stack up into a wall, and the wall is what I freeze in front of, not any single brick.

A demand is not only a chore. It can be a text you need to answer, a transition from one activity to the next, an expectation someone has of you, uncertainty about how something will go, or even something you were looking forward to. It can be being thanked. It can be being observed.

As a parent, I live both sides at once. I am the one delivering the demand, time to leave, shoes on, and I am the one whose own nervous system braces at being told what to do. Holding both roles in the same moment is its own kind of tired.

And here is the part I want other adults to hear: the moment something feels chosen rather than imposed, my body stops bracing. Running a company, which generates demands constantly, is paradoxically where I feel most myself, because the autonomy is real. The trick I keep coming back to is anything that turns a wall back into a list.

Reframing PDA beyond behaviour

Caitlin

If you only look at the behaviour, you will often misread it. PDA is not defiance, manipulation, or a child or adult being difficult. It is a nervous system doing exactly what nervous systems do when they sense threat. The behaviour is the smoke, not the fire.

Two things often drive it. The first is an intolerance of uncertainty: not knowing how something will unfold is itself the threat. The second is trauma responses that have often been built over years. For many PDAers, we experience the accumulated cost of growing up under pressure to mask, to perform, to be someone more convenient than who we are.

I find Internal Family Systems a useful way to see this. Inside, there are protective parts. Some scan constantly for danger. Some slam the brakes when a demand gets too close. Underneath them are the parts that carry old wounds, the times complying cost us our sense of Self. None of these parts are the problem. They are guardians, formed in moments when the world asked too much. When they feel safe, those same parts can enact some of our greatest strengths: integrity, creativity, a refusal to do things that do not make sense.

This is why pressure backfires. Rigid systems only make the inner system brace harder.

The invisible labour of being a PDA adult and parenting a PDA child

Laetitia

There is a layer of work that nobody sees. It is the constant translating: softening a request so my child can hear it without their system slamming shut, and softening the world's requests so I can meet them myself.

It is planning my day around windows of capacity rather than a tidy schedule. It is the energy spent recovering after I have masked through a meeting. It is noticing, in real time, that a simple task has quietly become too big, and forgiving myself for that instead of adding shame on top of it.

People see the things that do not get done. They do not see how much is happening underneath to keep a life and a family running on a nervous system that reads demand as danger.

Why traditional support often does not work for adult PDAers

Caitlin

Most advice given to adults is some version of just break it into steps, build a routine, or hold yourself accountable. For a PDA nervous system, every one of those is another demand. Accountability becomes pressure. A routine becomes a cage. The reminder app becomes the thing being avoided.

There is also a practical gap. There are no established clinical guidelines for supporting PDA in adults. A lot of clinicians have never been taught this profile at all, so adults get treated for the anxiety or the depression sitting on top, while the thing underneath goes unnamed.  When PDA is misunderstood, support can quietly become another source of harm. Even well-meaning clinicians may respond by adding pressure, consequences, or expectations — not realising that these approaches can deepen the nervous system’s association between support, coercion, and loss of autonomy. What is needed is not more pressure, but a reworking of the expectations around capacity, safety, trust, and choice.

What actually helps

We want to be honest that there is no formula. What helps is less a technique and more a shift, from trying to control the behaviour to reducing the pressure around it. Here is some of what has worked, from both of our angles.

Choice over instruction. In our homes, offering two real options works far better than a single directive. Why it helps: choice restores a felt sense of autonomy, which is the exact thing the nervous system is trying to protect.

Invitation over expectation. “Would it help to do this together?” lands differently from “Have you done it yet?” Why it helps: an invitation leaves the exit open, so the system does not need to brace against being trapped.

Lowering the demand, not the goal. Waiting for the window of tolerance, letting good enough still count, dropping a should for the week. Why it helps: a low-demand life is not a lesser life, it is a life built around how the nervous system actually works rather than how it is assumed to work.

Naming the invisible. Simple language can make an internal experience easier for others to understand. For example: “I want to, but the pressure is making it hard to start right now.” Why it helps: you should not have to explain your whole nervous system to get support, and naming a demand takes some of its charge away.

Buffers that turn the wall back into a list. This is part of why we build the tools we build. Anything that breaks a pile into chosen, sequential steps, on your own terms, can be the difference between frozen and moving.

What we wish schools, workplaces, professionals, and families understood

We wish people understood that wanting and doing are not the same thing, and that the gap between them is not laziness. We wish accommodations were offered before someone is already in crisis, not after. We wish more clinicians knew this profile exists in adults. And we wish the first response to avoidance was curiosity rather than control: not why won't you, but what is your nervous system responding to right now.

Toward more compassionate and realistic support

When lived experience and clinical knowledge sit together, a fuller picture becomes possible. One where the adult is not the problem, the parent is not failing, and support becomes less about control and more about connection, dignity, and capacity.

If you recognised yourself in this, you are not broken. You may simply be carrying more demands than the people around you can see.

A gentle next step. We have made a companion factsheet, Making Life Possible, a guide to hidden demands, low-demand living, and language you can use to ask for support. It is accessible within the Understanding Zoe app when you select Resources.

It also opens the door to Caitlin's Ripple Framework of Neurodivergent Flourishing: Supervision Program, which you can access on the Cathartic Collaborations website: https://www.catharticcollaborations.com.au/ripple-framework-of-neurodivergent-flourishing-supervision-program

Frequently asked questions

What is PDA in adults?

PDA in adults is a profile, often linked to autism, where the nervous system responds to demands as threats, leading to avoidance even of things the person wants to do. In adulthood it often shows up as internal shutdown and exhaustion rather than the visible resistance seen in children.

Is PDA the same as being lazy, defiant, or controlling?

No. The avoidance and the need for control come from anxiety and a nervous system trying to protect autonomy, not from unwillingness or manipulation.

Why is PDA so often missed in adults?

Adults tend to mask, and their avoidance turns inward, so it often gets mislabelled as anxiety, depression, or a personality trait. Most existing resources also focus on children, so adults rarely see themselves described.

Is PDA a formal diagnosis?

PDA is not a standalone diagnosis in the main diagnostic manuals. It is widely used as a descriptive profile within autism, and there are currently no established clinical guidelines for supporting it in adults.

Can you have a PDA profile without a formal autism diagnosis?

Many adults identify with PDA before, or without, a formal autism diagnosis. PDA North America's 2026 data found fewer than half of those identifying with PDA had a formal autism diagnosis.

What actually helps an adult with PDA?

Reducing pressure rather than adding it: real choice, invitations instead of instructions, flexible and low-demand approaches, naming demands out loud, and tools that break tasks into chosen steps.

References

Doyle, A., & Kenny, N. (2023). Mapping experiences of pathological demand avoidance in Ireland. Journal of Research in Special Educational Needs, 23(1), 52-61.

Fidler, R., Christie, P., & Kirk, C. (2021). Pathological demand avoidance: Current understanding and support. Autism, 25(2), 318-329.

Gillberg, C., Pickles, A., & Madden, S. (2018). PDA and the autism spectrum: An update. Journal of Child Psychology and Psychiatry, 59(5), 541-555.

Gore, N., Hastings, R. P., & Brady, S. (2020). Experiences of receiving a PDA diagnosis. Journal of Autism and Developmental Disorders, 50(8), 2951-2962.

Newson, E., Le Marechal, K., & David, C. Demand avoidance in autism: historical perspectives and modern understanding.

O'Nions, E., Happe, F., & Viding, E. (2020). Distinct profiles of PDA within autism spectrum disorders. Clinical Child Psychology and Psychiatry, 25(1), 87-99.

Stuart, L., Grahame, V., Honey, E., & Freeston, M. (2020). Intolerance of uncertainty and anxiety as explanatory frameworks for extreme demand avoidance in children and adolescents. Child and Adolescent Mental Health, 25(2), 59-67.

PDA Society (2024). pdasociety.org.uk

Further reading from the authors

Laetitia's articles: PDA isn't about avoiding things (laetitiaandrac.substack.com/p/pda-isnt-about-avoiding-things) and What living with PDA actually looks like (laetitiaandrac.substack.com/p/what-living-with-pda-actually-looks). Caitlin's articles: Understanding Persistent Drive for Autonomy and Inside the nervous system: reframing PDA with IFS (both at catharticcollaborations.com.au).