Here's a fascinating article about school uniforms.
I've worn four different school uniforms, most not bad but one incredibly ugly. I've worn (obligatory) suspenders to hold up my skirt, I've worn a tie, and I've worn regulation "knickers" (which, by the way, are not the same thing in British English and American English - ask me how I know).
Nobody enjoys wearing a school uniform - it's something students are supposed to complain about. My students wear a uniform that is infinitely more attractive and more comfortable than what I had to wear, and they whine endlessly about it. But I've always felt that uniforms are a good idea because of the elimination of competition over clothing. They aren't a solution to all the ills of schools and society.
I was surprised to read about negative results in academic achievement. I'm going to look into this more and see what I can find out about the study design. It's counterintuitive, but then, so much of reality is!
Here's a link to an abstract of the study.
5 hours ago