My daughter is 12 and she has been going for years. She killed two two deer last year with her rifle. She is working up to a legal draw weight for deer. I usually took my muzzleloader or rifle when shewent because of the increased chances of getting a shot.

One of the best 'tools' for taking a kid hunting is a two person ground blind. Nobody can fall out. There is lots of room for comfy folding chairs. It hides motion from reading, snacking, Nintendo, word puzzles etc.