What's it for?

Going to the gym very early in the morning has a lot of great advantages (I know, if you're not a morning person, blah, blah, blah). One of them is to watch people sort of in their basic appearance, before showering, getting dressed, wearing mousse, make up, etc.

One of the fashion statements I don't understand that early is the wearing of hats (baseball caps, visors, sky caps, etc.). To start with, at 5:30 am is still dark out, so no sun protection is necessary. Second, we're indoors, so no rain protection necessary. One could think that it's a solution to unruly hair, right? Now, explain to me this middle aged skinhead guy that wears a visor backwards placed in a dorky fashion in the middle of his head...(see illustration)

Any comments, fashionistas?