^ 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.
So people like you would love to see tight pant man showing the size of his butt and perhapse give you an idea of the size of his tool,
or
a woman walking on street with a tight shirt showing her boob size or her cleavage giving you the clue how far her nipples would be and not be worried about it.
When someone asks you to wear anything loose so body figure is not so obvious you will think sky is about to fall or everyone on earth is going to drown in to the flood of religion?
By the way, Islam is not stuck in middle east.
**THE PROBLEM IS THAT PEOPLE WHO THINK OF ISLAM ARE STUCK IN MIDDLE EAST.
**
Hope you got the point.
Hoping you have some neurons firing electricity.