The comment section isn't working for Peshe's Post...

So here's my response:
Thinking about Poneiwozik's article, I believe that just as the mainstream has changed, so has its perception in the eyes of those in subcultures.
With Hip-Hop, it was White upper-class oppression; with the Z-Boys and Parkour it was the definition of sport and of the acceptable use of public spaces; with Punk, it was with fashion, banality and political deception. The list goes on. The point is what is "mainstream" depends on who you ask. It is all about your subjective experience of everyday life that people who do not see themselves as part of a subculture lead.
I have enjoyed this class because not only did I gain a new perspective on some subcultures I either had never heard of, or knew very little about, but I also got to ask myself the big questions about why I started calling myself a "Metalhead" in the first place. It was because I saw something in Heavy Metal music that was not anywhere else I looked. The emotions that heavy metal expresses are conveyed in a way that kind of spoke to me as a person and to my experiences in life.
In this class we have noticed that a lot of subcultures have been segregated by race or class or gender and we cannot seem to figure out why. I would say it is because people who break off from the mainstream form a group of likeminded people to help them start their revolution. They look for those who are like them; hence you see a racial 'barrier' in Rap or Punk and you see challenging of gender roles in Riot Grrrl. Each of these movements formed around people who felt the same sort of sentiments towards the mainstream, so it is not a surprise that those sentiments coincided with their demographics.
Finally, the debate that resurfaced: "arrested development". I cannot stand it, mostly because I see counter-examples constantly as I go about my daily life. Not wanting to be Mr./Mrs. Suburbs and wanting your kids to listen to Black Sabbath instead of Barney does not make you immature. It makes you different. This class is called youth cultures, but that title has always referred to who joins them, not who LEAVES them. There is no data on longevity in subculture because of this assumption of immaturity. People can do a lot with their lives and they will never truly throw away something they see as part of their identity.