One of the interesting thing about these underground music movements from hip hop to punk is the DIY ethos for the creation of music, publications, performance spaces, and more. Adults and respectable companies aren't helping (for the most part) so the kids have to direct and make things on their own.

I think it's not a coincidence that many people who get involved in underground music movements later start successful careers in creative endeavors - fashion, cuisine, publishing, design, programming, etc. There was a documentary a few years ago tracing the lives of people who had been active in the 1980s music scenes and so many of them ended up in these professions.

And you don't have to look far to find more famous examples - Kira Roessler (Black Flag bassist) won an Oscar for sound editing for Mad Max: Fury Road, Damond John's fashion label coming out of the late 80s/early 90s NYC hip hop scene, and Anthony Bourdain's coming of age as a young chef and NYC punk fan in the late 70s.