That's actually pretty cool Eccentric_Blue1. I have wondered how many people wear wigs for this purpose. Just think, once you are "out" and working or at college/university/etc., there are choices YOU can make in order to look the way you want. I actually regret not taking advantage of this period of time and doing more crazy hair stuff! My hair in high school/college was actually quite boring (blonde, bleached, poofed, hairsprayed to hell).
I agree with you, though. There are a ton of things that the school district should be worried about instead of hair color. How about education, eh? Violence? Attendance? Getting kids into a career path?
I had the good fortune to attend a school that didn't discriminate against creativity (at least for the last year). Our senior class president had wild hair (red, then blue, probably Manic Panic). No one seemed to care, at all. I did attend an arts school, though.
Prior to that, I attended a very prim and proper private school, with a dress code that only allowed for skirts (no shorter than the top of the knee) and very modest (read boring) clothing.