Re: Islam and "Pants Shirt"
^ I am not exactly sure what your point is. If a school has a dress code as shalwar kameez, and parents like that school, by all means all kids should abide by it. If a school has a uniform of brown slacks and white shirts, and parents like that school, they should abide by it. Same is true for any other dress code e.g. martial arts etc. A martial arts school will probably not allow you to be in a class if you are dressed in suit and tie either. So a little common sense is also required to make sure kids are dressed appropriately.
Now, I think the purpose of the thread was not to diss shalwar kameez (I actually like that dress) or to downplay the importance of teachers, but the misguided conception that shalwar kameez somehow represent Islam, where as trousers-shirt are unislamic dresses. Of course, if you look strictly according to cultural issues, the Arabian taub is probably more "Islamic" than a shalwar kameez, but that would imply Islam is stuck in middle east and is not a universal faith.