Firstly, the school uniform has strictness which make children study at school more seriously.
Further more, school uniform makes children more disciplined.
More than that it isn`t very expensive. And every family can afford to buy it.
More over, school uniform removes social inequality because both rich and poor children wear the same clothes.
Further more, there is no such a question what to put on in the morning. Now, let`s pay our attention, to same negative aspects.