Advantages and disadvantages of school uniforms

In some schools it is required to wear uniform, but, do you agree with the uniforms?

On the one hand, school uniforms have got an important advantage: they are more convenient  when children have to choose their clothes, because choosing your clothes can delay you. Another advantage of school uniform is that buying a uniform is cheaper than buying  ten or more different clothes, so we can say that uniforms are more economical than normal clothes.

On the other hand, school uniform are less comfortable or less “cool” than normal clothes, and if you are conceited, this will be a problem for you. 

To sump up, I think the only problem of school uniform is merely aesthetic.