As do I.
these matters are not just about the parents (although of course they have to actually make the decisions).
Its resources too - unless the parents are very well off, the prospect of a lovely and caring care home provided by the state are far from realistic.
I have a very disabled DGD, who fortunately, tho nearly blind, learning disabled and with Cerebral palsy and epilepsy, has a good quality of life because her parent put enormous amounts of effort in, and can afford some private care at the moment as its all part time: but when she finishes school, we all know very well in the family that she will never live independently, she will need 24/7 care.
My DiL and DS never had the choice as she was oxygen deprived at birth and was doing OK until during Covid at age 6 she had major fits which then took away her sight. It has caused some issues for DGD's eldest brother because so much attention was needed by DGD.
I would never dream of asking DS and DiL "had you had the choice".
But here is the crux of the matter: were we a society that had adequate care home provision for those needing 24/7 lifelong care then their choices and their feelings might have varied a great deal. But we are not.
The options are really limited at the end of schooling years for daycare. However loving DS and DiL are, they will get old themselves.
We all live in the present, but I think my families experiences have made me feel that it needs to be an option for parents to weigh up what kind of life a child of theirs might have and what their limitations, emotionally, or financially, might be.