Start him off with a simple rpg Pokemon is a good start. Had this same issue with my son was questioning of where to start him off at, I stayed away from rpgs with heavy gear swapping and stat allocation at first. He is currently playing FF13 for the first time and doing pretty good gots handle on things few more hours of play he wont need my help anymore. Some I would recommend to give him a try on Fable or Zelda they are more action oriented by a equally good start.