What the students wear shouldn't matter. School shouldn't be about clothes, grades, if you arrive to class on time, or bubbling answers. It should be about inspiring others, learning practical information--not memorizing, learning the value of work, learning quality over quantity, learning how to respect others and how to negotiate, and how to do the best quality of work with the least amount of effort.
yes they improve learning
RME wants to improve the school system, which is the root of a lot of problems--globalization, unemployment, and the list goes on.