A lot of (mainly private) schools over here in the US have uniforms too ._. There are days where where we're allowed to not wear them (rare occasions nonetheless), and girls are restricted accordingly.
I never understood why we couldn't wear tank tops....OMG A SHOULDER *Boner alert* no, they should have banned the low cut shirts. I got in trouble for wearing a tang top (It was that or my corset since I don't have much clothing and the washer broke down) and I got in trouble. Yet the girl stand right next to me, her shirt was literally not even an inch away from showing part of her nipple
With their ankles. Or elbows.