Yeah, subcultures often develop their own unique styles, and then inevitably those unique styles are distilled down to mass-produced and commercialized kitsch. And new people want in on this or that subculture, but they can't make their own culturally identifying items or clothes, or buy them from obscure stores (before the internet started selling everything) but look...here's everything they need to identify with this culture on this rack right here, a shirt, chain, hat, bracelets, shoes/boots, etc. And these subcultures and in-groups aren't always the most inviting to new people either, which pushes them to these cheap, commercial versions instead of the genuine culture.