We say no to lots of things that would please us. I would like to punch people every now and then but I don't. I would like to have something for free rather than pay for it. I would like to skip to the front of the line... I don't mean to brush aside the taste of meat which is a powerful attraction. But its power is not without limit.
If you don't physically age gracefully it's a bit sad. I think Steven Tyler can get away anything because he still looks like he did in '73. Especially from row Z backwards in an arena. As long as the Stones keep their hair and don't get fat they'll get away with the wrinkles.