Yes. The more I read books, watch movies, or play games where the central protagonist is a "young person", the more sick I become repeating over and over the phrase in my head "children are stupid." I'm only 27 and I feel so old when I watch teenagers making stupid decisions. For example, I've read Absolute Boyfriend and B.O.D.Y. and I hate the female protagonists and damn them as retards. I don't approve much more of the males either because men are monkeys. But when I realize how much a young woman is willing to put up with for companionship, it pisses me off. I'll say it again. "Children are stupid."
I prefer stories where adults have learned one way of life and have to sort of "unlearn" in order to cope with reality and to rediscover their humanity. Stories are naturally better when the lead is more experienced and doesn't surprise easy. Don't get me wrong, being experienced doesn't automatically mean the lead has to look old or frail. In fact, they could be a thousand-year-old robot with the body of a child and it'd still make for a better narrative.