One thing you might have noticed about the film American Psycho is that everyone has basically the same haircut. It's sort of a major plot device. Paul Allen thinks that Patrick Bateman is Marcus Halberstram, which leads to Allen's murder. Similarly, if you take a walk around neighborhoods known for men who pay a disproportionate amount of attention to such things, you're going to see a lot of man buns ...
... Hitler Youth undercuts ...
Been there, done that.
... and my personal favorite, '50s dad hair.
The cut that raised the Beaver.