in my sons playschool there are uniforms, both for the kids and the teacher. he is is a school with a different curriculum than others so it's the only one in iceland that has a uniform (at least to my knowledge) except one school for kids from 6-15. I like it, they are at a good price, they are comfortable for kids to play in and like the school says 'we are all playing for the same team' . if the parents of some kids can't afford the uniform the teacher has a few extra to let the child wear while he/she is in school. the schools logo is on it and it shows a girl and a boy with a small flower between them to show equal rights and and needs for each gender.
I am all for it because I know of to many incidents where kids teased because of their clothes and what kids want to wear these days is way way more expensive than the uniform. I remember a girl who was teased a lot because her mom bought her clothes in a shop that wasn't as cool and expensive as the 'cool' kids clothes. my sons niece isn't an a equal part in her soccer team because she hasn't the right Adidas pants, the don't pass the ball to her and try and push her out of the game. this is not right and there are so many incidents like that all because of the clothes kids wear to school each day.