I remember hating piano. My mom made me stick with it, and when the time came that she would let me off the hook--I wanted it. So I stuck with it, and I'm glad I did. That would be great if J chooses piano, too, someday...even if now, he declares:
I don't want to practice piano right now! You can't make me. I don't need to practice the piano because when I grow up I'm going to be an NBA player, not a music player!
(One day you'll thank me, J.)