People who develop stereotypes forget to include exceptions. It feels good to have symmetrical patterns or trends without the glitches in between. But it is that asymmetry that makes the design unique.
Guys keep long hair and wear earrings to look cool.But why does it look cool? Do they feel cool to look like a girl (because we associate longer hair and the obsession for jewelry with femininity)? Or do they feel cooler by breaking the social norms of the society to stand out?