You’ve spent half your life looking after small children while they have been out and about, or travelling nowhere near home and never had the pram stuck in the toilet door or had to clean your clothes up after being vomited on by an infant or had to change a child in the loo? Great, please give me tips on how you did that.
Yes, that's what looking after small children means. And trying to change a child in the men's which often had no changing facilities could be very difficult, one reason why toilet design needs to be rethought and gender neutral options are a good idea.
Not all trans women have the privilege of being able to stand to pee by the way.
And wheelchairs users generally use accessible toilets, for precisely the reasons you mention, although I'm sure you knew that really.