Looking at it here a bit differently I do have some sympathy, having gone through something similar with my DD.
My DD identified as male for a while in her early teens and the whole issue around public toilets was really difficult for her and was a nightmare when we went out.
She felt that she "ought" to use male toilets, but not surprisingly didn't feel right and safe in them. However, she was painfully self-conscious and scared going into female toilet facilities in case she got challenged. In fact she DID get challenged a couple of times, which for someone young and autistic caused her a great deal of anxiety.
I had to make sure she had a list of gender neutral toilets around our city.
There's a lot on here about people being male-bodied and using female toilets - but not much thought goes to young gender non conforming women and girls (who go on to identify as non-binary or f to m trans) and their safety, comfort and dignity.
Aware I'm using language and terms that will offend everyone on every side - but the issue is real for young autistic people "AFAB".