"Punk was just as close as Skiffle was to the folk tradition..." That is an interesting comment. It's much like cell theory from a class I failed in high school: all cells come from previously existing cells. It is possible to isolate people from music, but I think even the groups of people who try to do that can't stop the leaks. Music forms will continue to develop and some will be accepted by people and some won't. I doubt anything can or should be done about it.