why do some girls think cheerleading is nerdy ?

Why do some people think that blonde are dumb?
Jocks are stupid??
Redheads have bad tempers?
Black cats are evil?
Hockey players are sexy?

Funny thing is, I always thought the stereotype of a cheerleader was bratty, self-centered, popular, and stupid.

Nerdy? Maybe a lot's changed since I was a cheerleader, but I've never heard someone go "oh, those nerdy cheerleaders". My most nerdy friends are pretty anti-cheering. They think it's anything BUT nerdy.

I guess some girls may not like it because it just doesn't appeal to them. Some people are into different froms of dance, don't really care for stunting or tumbling or wearing short skirts, yelling in front of people, etc.