Depends on the uniform. For full blown suits, yeah, that's pretty much a private school thing, or at least a nice suburb. For inner city schools, uniforms can consist of khaki or black pants and a shirt that can be one of three solid colors or so, typically neutral, unaffiliated colors. So rather than a "uniform", it's more like a "limitedpolyform". Granted, I can only speak for a single school district, so make of that what you will.