But it's like school. If I were the mom who expected the teaching to all be done by the teacher, I'd have the kids who learned only what curriculum was in the actual classroom. But since I'm the mom who expects (demands) earlier, later, deeper, and generally beter learning, I have very bright (yeah, gifted - so what?) kids who like to learn.
The point? If I want them to be gifted at their instruments, I should push for more, better, and extended music learning too. (But do I? Really, only if they care.)