This is what people mean when they talk about PDA.
What PDA actually is
PDA stands for pathological demand avoidance. It describes a profile often seen within the autism spectrum, where everyday demands trigger real anxiety. Not irritation. Anxiety.
A demand can be almost anything: put on your shoes, answer this question, come and eat, say hello to your aunt. For most children these requests pass by unnoticed. For a child with a PDA profile, each one can feel like a door closing.
The avoidance is not a choice made in the moment. It is a protective response that arrives faster than thought.
Why demands feel so heavy
A child who avoids demands is usually carrying two things at once: a strong need to feel in control, and very little tolerance for uncertainty.
When an adult gives an instruction, control moves from the child to the adult. If your sense of safety depends on knowing what happens next, that transfer feels dangerous. So the child pushes back, negotiates, jokes, changes the subject, or shuts down completely.
What looks like a power struggle is often a safety struggle.
How it can look at home and at school
It rarely looks the same in both places.
Some children hold themselves together all day at school, following the rules with enormous effort, and then collapse the moment they get home. Parents describe evenings of shouting, tears and refusal, while the teacher says the child is doing fine.
Both are true.
Other children avoid openly: they leave the room, refuse to start work, or become the class comedian so that nobody notices they are stuck.
What tends to make things worse
Rewards charts, countdowns, raised voices and consequences usually add pressure rather than remove it. The child is not weighing up costs and benefits. There is no calculation happening, only a body that has decided the situation is unsafe.
Repeating the instruction louder tells the child that the demand is not going away. That is exactly the information their nervous system is afraid of.
What tends to help
Small changes in language can change everything.
Instead of "put your coat on now", try "the coats are by the door when you are ready". Instead of a question that demands an answer, offer a comment the child can pick up or ignore. Instead of two adults facing the child, sit beside them and look at the problem together.
Give real choices, keep them small, and let the child keep some control over how and when. Declare information rather than instructions: "I am going to start cooking in ten minutes."
And leave more space than feels comfortable.
A different question to ask
When a child refuses, the useful question is not how do I make them comply.
It is: what feels unsafe right now, and what would make this smaller?
Children with a PDA profile are not trying to run the house. They are trying to stay upright in a world that keeps asking things of them faster than they can manage. When we lower the pressure, we usually find a child who wants to take part.