I think students should wear school unoform in all schools. It doesn't matter if it is a private or a state school. Uniform is important because it is not very expensive and can help students from families that can't afford brand clothes feel comfortable among others. On the other hand, if the school uniform doesn't acquire the required quality or lifts the modesty of students down, it's not an efficient and moral idea to make it compulsory. I think that the ideal school uniform for boys is a complect of a vest, a jacket and trousers so that they can stay active during the lessons and breaks. Girls, as for me, will appreciate a complect of a vest, a jacket, trousers and a skirt or a dress.
In my opinion, the main aspect is to ask teachers, students and their parents some questions on this topic before jumping to the conclusion and then decide whether the school needs to have its own uniform or not really.