They have their pros and cons. I wore a uniform to a public school (Australia) and it definitely meant that I had one less thing to worry about every day: being judged by what I wore. As an adolescent that meant a lot, and getting the freedom to wear whatever as an adult has meant that:

I got to learn what's appropriate before I got that freedom and
I had the maturity to not care what others thought about how I dressed.

[–] Jolan@lemmy.world 7 points 8 months ago

I went to a British school and it may have helped against being judged for what you wore but instead people just judge you on everything else like your haircut or the way you speak or the way you act etc. If people want to judge you they will snd what you're wearing won't stop that. Not to add people from poorer backgrounds will have broken/ripped/dirty uniform so it does not help at all.