My son started to play almost by accident, first he began listening to very har rock, new bands, and playing some songs, and I am always around him, showing good fingering positions, to avoid running up and down the neck, scales, etc... Then I gave him one game from Play station with a guitar, called guitar hero, he changed towards the type of music, now he knows songs with The Police, Cheap Trick, Pink Floyd, Metalica, and the list goes on with 70's rock, and I try to let him use my pedals, other amps, flip to 5 strings bass, and back to 4 strings, I know that he wants a guitar SG gibson, one of my favorites, maybe I'll buy one, but money first. I'm planing to set-up all my rig along with his rig, I play with a GK 800 and 2 GK Cabinets, and play more often, also I want to teach guitar to his little friend, for free, and this way force them to play together, and so, one pushes the other to play even more.
Joe