Exactly. My kid is playing Tchaikovski on the piano at this very moment. (Well, a for-beginners version of one of his themes, but still.) She's happy playing

Exactly. My kid is playing Tchaikovski on the piano at this very moment. (Well, a for-beginners version of one of his themes, but still.) She's happy playing it, I'm happy hearing it. If nobody gets any smarter, who cares? We both just got happier. Ars gratia artis.