If you're going to buy the boy his own rifle, might I suggest the Remington 700 ADL Synthetic Youth in 308 Win.?
I dont know what it is about the 30-30, but to me its annoyingly loud and also has more perceived recoil than a short barreled 308.
I got my 14 yr old the Remington, and its been absolutely awesome, he got a 5 pt bull elk with it last year, Iron sights, 75 yards. Perfectly through the shoulder, one shot. Its just as light and handy as a 30-30, less noise, more power, more range, better selection of bullets, and about the same price as a new 30-30.
Just my .02 cents worth. Whatever you choose, Happy Shooting.