Recent generations are too caught up in style and materialistic expression. We have heard many horrible stories of youngsters killing one another over a pair of shoes or a fancy jacket. While it is wonderful when we can dress our children in clothes that will make them look "cool", we shouldn't promote a culture where kids who aren't wearing designer clothes are ostracized and ridiculed.
If school uniforms help keep the peace, so be it. Maybe the uniformity will teach the kids to be true individuals, instead of slaves-to-fashion.