One of the things that bugs me about the different uniforms for girls and boys is that often the girls are just put in the boys uniform and maybe allowed a skirt.
I did years of supply and one school I worked at, and only one, gave the girls the option of a shirt and tie the same as the boys but also a blouse and scarf - similar the the type you might see on a flight attendant. The blouse was also designed to be worn outside the skirt / trousers.
I've actually had a discussion with a head teacher about the fact girls get curves. I pointed out that if you see a group of soldiers the females will have trousers that look tighter over the bum because women have bums.
This was a school that put a girl into isolation because her uniform was 'too sexual', she had put socks on over her tights, no flesh on display from the neck down.
She wouldn't let me fight her corner.
Another of the many things that bug me is schools go mad with girls rolling up their skirts and then put them in skorts for PE.
I've always been glad to get back to teaching in E where students wear what they want (with a few rules about what a T shirt can say) and manage to study just as well.