A more important reason is that the bands will intuitively trust someone they think is a peer, and who speaks fondly of the same formative rock and roll experiences.
Explore more quotes
You see something happen to a population whereby everyone adopts something that's just preposterous in a way that makes it normal instantly. If any one person prior to the rash of puka shells, for example, was seen wearing puka shells, he would look like an idiot. But when everyone is wearing them, it instantly makes them normal.