Uniform is important because children realise that they are at school not at a disco, a stadium, a party or a swimming pool.It helps them to study harder. It makes them more disciplined. Uniforms also prevent social inequality becauset both rich and poor children wear the same clothes. To my mind children must follow the rules.
I think the ideal school uniform for boys is trousers, a shirt, a vest and a tie. It is so elegant for every boy.
Girls will feel comfortable in skirts, blouses and jackets. But sometimes it is very comfortable to wear dresses.