I think the reason some people took shots at the Rolling Stones or other sixties rockers continuing to perform in their fifties and beyond was primarily because "rock music" was so closely and firmly associated in their minds with youth and rebellion.
What annoys me is when people try to argue that classical nonsensical logic line that geezers acts are simply only "getting in the way" of new acts. They need to be put out to pasture. Which is quite stupid to say the least in so many obvious ways I won't list them.
