The transgender issue is complicated. I don't have any doubt that some young people feel they're in the wrong gender. When it "starts" at a very young age, it's quite obvious that it's not due to any issues around them, it's "in" them. I don't know if there's anything in  the gene structure to "explain" it. Intersex people are "clearer", the genes got a bit mixed up.

When a young person finally takes the plunge and dresses as the gender they feel they should be rather than the ascribed gender at birth, they surely want to be identified as that gender and others surely want to dress as their gender?

Where's it gonna end? Girls will no longer be able to have long hair? Boys must not have very short hair? The "school haircut" will be compulsory for all? When a girl starts to (cough) "develop" will she no longer be able to have any indications and have to wear something to flatten them?

It's high time this idiotic thinking is given the boot and instead young people are taught how to dress and present themselves to school and have a pride in their school iniform instilled in to them by careful persuasion not heavy-handed compulsion.