You do realize it is not about the gray hairs, don't you? It is about attracting the people who have a full head of hair, the younger crowd. I don't quite understand all the stink over an hours worth of entertainment. If you don't like something move on until it is over.
Rick
p.s. Don't get me wrong, I honestly could not care less if there was a concert or not. If it is there and I like the music I attend otherwise I get a jump on the shower and beer.