I mean no one is really willing to address the fact that the same thing still happens anyway; some people have quality uniforms (good cut, good fit, good fabric) and others have primary tat that rips up the arse the first time they bend down to pick up a pencil
. Plus nicer coats, bags, shoes... You can still tell who the poorer kids are. It was that way at both of my schools and its still the same at my daughter's primary school.
I mean on balance I'm actually FOR uniforms... I think it's a better aesthetic for a school... Though I don't think it's of huge importance and I don't think it has much impact on bullying at all and honestly if anything I think kids are more likely to be bullied for a scruffy / too small uniform than for wearing cheap casual clothes.