No one 21 or older can handle a handgun with out a permit. 14 to 21 can handle while supervised by a permit holding adult, LE or military personel. Long guns can be shot at 12 years old. Handguns can be shot by another permit holder while in the presence of the owner.
Having said that, Dude you insist on putting this stuff out there. I do not know if you are trying to be helpful or just paranoid. Last year you posted some other thing about lever action rifles. Give it a break!! You put stuff out there for the whole world to see. Thanks but no thanks.