Dreadlocks are not the easiest thing to pull off. First of all the only way you can get dreads is by not washing or combing your hair. So that's step #1: be slightly more dirty and do less maintenance than the average human.
But even with that going against, there's something very alluring about dreads. Perhaps it's for the exact reason? Perhaps we like getting into the nitty gritty. Perhaps we like girls that aren't afraid to make a big statement.