I’m going to be patronising, Marguerite because when you post ‘bore off’ in the way that you did, you demonstrate yourself to be very immature, and your subsequent posts have been more of the same.
The concept of ‘choice’ for women and girls is something that will always be discussed - well, I hope so. Maybe things have changed.
Reading more comments here, the issue is that school uniform was designed for boys and then, like so many things, girls were shoehorned into it, hence so many schoolgirls wearing that most masculine item of clothing, the tie. Perhaps retailers should be lobbied into producing school trousers that are actually, first and foremost, designed for the female shape. But surely this argument about shape and fit is one that could be chucked at blazers, for example. How many fit girls particularly well?
I should say, I completely believe this decision is to placate the trans lobby, and I think it’s a stupid decision and to involve the police is ludicrous. But the wider discussion could be interesting.