I don't know for sure. But I don't think it's some kind of cult or something like that. Rather, these guys simply do not decide to leave the comb at home when combing, but take it with them, and not in their pocket, but in a more original place. It's kind of a feature of their hair structure, they say, "I can do that, so why not?".
Just think: if you had the same hair, would you leave a comb in it? As for me, it would be interesting ...
Moreover, only the owners of the "afro" hairstyle wear a comb in their hair, and it must be periodically combed from the very roots to make it splendid. Yes, and not all wear a comb in such a place, but only "boys from the area" when they go to the store. Officials do not do this, moreover, they do not wear "afro" (Obama, for example). Although there are exceptions (singer The Weeknd).
Perhaps their head itches from time to time for various reasons, and a comb is an ideal option to "scratch" the scalp.
I wish I could I ask them why they do this, but I think they will send me the fuck.
So I think that the comb in the hair is like a pencil behind the ear - just a "life hack". On the opinion of others, wearers of the comb do not care deeply ...
So white-skinned slave owners checked the purebred belonging of the Nigroid race. They left a comb in their hair and asked them to jump or shake their heads, and if the comb did not fall out, this proved pure blood. Well, since then, in the ghetto quarters, this has been transformed into fashion. Like I wear a comb in my hair or I am a purebred comb.