My son has three boys, ages 14, 11 and 8. All have been very carefully trained in firearms safety and all shoot under my son's very strict supervision. The eldest will probably begin deer hunting with his own .243 this fall, again in the company of his dad. All three boys have shot the lovely Smith Model 15-8 I gave my son, the older two a lot. They won't officially own handguns till each turns 18, but they'll know how to handle them responsibly. It's all about good teaching, and always has been.
"Don't let macho be your epitaph."