Everyone has different ears, and everyone has different cares, including kids. My son is just like yours. Really couldn't care less about sound quality. Give him his iphone with his mp3's, give him a dock, and all he cares about is how loud it can play. I've sat him down in my SDA sweet spot, and he really doesn't have much interest in it. He'll acknowledge that it sounds good, but it's not as if he ever asks me if he can listen to it, there's no interest. But he has friends who have been absolutely blown away by it. So I think it varies depending on the kid, just like it did 35 years ago or so when I first started getting into audio.