Given that I have made it 2 years without getting bored I don’t see that as being a problem. 
When I stopped working on my Civ 5 mod it wasn’t because of boredom. It was because I had hit a wall and couldn’t really progress without access to their source which took them several years to finally release.
For me the greater danger is day to day. For instance, Paragon looks great, but I feel guilty anytime I take time away from the project to play something else.
See, I actually wish my parents had been at least somewhat strict because I spent my childhood playing games all the time and I never learned anything productive or put any effort into school. It all worked out in the end, but I wonder how things would have gone if I had learned how to program at that age instead of playing around.
It would have also helped if my school had programming classes. I see schools starting to offer programming as an alternative to a second language course and that is great. Will definitely nudge my kids in that direction.
If you already have 6 years experience by the time you leave high school you should be pretty well prepared to making programming a living if you can afford to go to college, and then maybe even if you can’t.