It's not an aversion. If I had nothing better to do, or had a terrible time finding anything new to listen to, I'd be okay with learning about and learning to appreciate classical music. But as it happens, new, immediately fun music enters my life at a pretty satisfactory rate. I added a new artist to my library just yesterday because my roommate played his CD in the car on the way to the grocery store and it sounded neat. There's no reason for me to spend extra time on music that doesn't promptly catch my ear, when I can just hit up friends for personalized recommendations, cruise Pandora, and keep up with the artists I already enjoy - unless I feel like succumbing to the status signals that make classical different from other music!