Both my brother and I started at 5 years old with a Crossman (760?) bb gun. We had no problems pumping them at that age, at least for a number of shots. We never did get a 22lr, my dad never had one, I still never owned one. If you load your own ammo, I see no value in rim fires. Pellet guns are cheaper, and/or you can load pistol calibers on a progressive that is better than the 22lr "bucket o bullets". The worst problem is the opinion that 22lr is weak or safe. At least a .177 pellet gun is going to be very hard to seriously hurt a person short of a shot to the face, and nobody is going to short change a 38 special.