Kind of a losing battle, except for those who are actually in the business. People associate pop music with adolescence and don’t find any point in following it long after their adolescence is over. Sometimes I hear a catchy song and I like it, but if I didn’t listen to whole albums back when I was the target audience, I’m not really going to do it now.
For the most part, yes. But there are plenty of kids around who love the classic sounds. I myself liked doo wop back when I was a pre-teen, and it had come out before I was born.