Marigo yes, I am very hmm about all the 'lifestyle choice' arguments, and in complete agreement about your post natal pelvic floor issues.
If it were as simple as going to the loo before you left the house then not going for 4 hours, you'd have probably worked that out, yes?
We all need to be campaigning for more suitable public toilet provision for all women, those with disabilities, young children, trauma experiences etc, rather than blaming individual women for doing the best they can with less than ideal resources.
I did the use the end cubicle with door propped open so that I could see the buggy with the baby in a sling technique a few times, and found it profoundly degrading, embarrassing and upsetting. Other people on this thread suggest that they found it no problem. Lovely, good for them. This is the only time I've used an accessible toilet, although I do have a disability.
Like you, the reason I used an accessible toilet if I was desperate wasn't because I wanted to make life harder for people with disabilities, or because I was 'entitled' or because I don't understand what accessible means.
It was because I really, really needed the loo and there wasn't other provision that was suitable. If there was, I would have obviously used that.