 A hair color that is stereotyped as dumb, or ditzy. There are natural blondes that think that their stereotyped hair color should control the way they act because they are made to believe that that is what society expects from them. But, the reason for the blonde jokes comes from bottled blondes who don't care if they're acting dumb because they aren't actually blonde. Thus, the jokes don't affect them. In reality, most natural blondes don't let the stereotype affect them, but are still labeled as dumb due to the bottled blondes. All in all, a hair color doesn't affect the IQ or the attractiveness of a person whether they're a blonde, brunette, or a red-head.
Natural blondes shouldn't have to believe that they have to live up to society's image of a ditzy, dumb, barbie-doll blonde.