Can we get back to teaching?

We've spoken before about these topics which come around every year, and as it's back-to-school time we have the usual stories of children falling foul of their school's uniform policy, but this year the situation is complicated by the current obsession with gender-fluidity.  Never mind whether a student's skirt-length is too short - what about if that student is a boy?  One school has decided that the way to deal with this is to ban skirts and require all pupils to wear trousers - but then, isn't that sexist?  Why trousers - why not make them all wear skirts?  What a mess!