While the research seems interesting, the story at least (not sure about the research itself) does not seem to speculate as to where these stereotypes come from, besides calling them "society's stereotyped notions".<p>What I'm curious about is do their findings suggest that parents or media or toys or books or whatever else is responsible.<p>I'm not arguing that the stereotype exists, I'm just curious about how it is reinforced in the fresh minds of children.