The idea of layers. Students wearing school uniforms is normal, because I'm wearing school uniforms since childhood, then regardless of any school must enter the batch of the school.
The notion of class Students wearing school uniforms are common. I was wearing a school uniform to a child, whether it is a school where you have to wear the school.
In my opinion, the students wear school uniform is normal. Because I have to wear a school uniform come since then no matter what school must wear the school.