When my son was 12yo, he would get up before i get up to go to work, get ready, drive our farm truck 1/2mi up the road and go get in the treestand he hung himself. He killed his first deer at 6yo. Killed his first buck by himself in his treestand at 12yo. Hes 15yo now and bow hunting. He was in a tree several hours today. I dont know what to tell you about your situation. I dont think i did anything special. I just took him hunting and he loved it. Every kid isnt going to love it like that. I guess thats ok. The only advice i could give is to make it about them. If theyre sitting in the shooting house with you, its their turn. I know alot of men really have a hard time letting it be the kids turn. I always made it a point to make sure Joseph killed the first deer, after that it was my turn. The one down side to my situation is that i seldomly ever get to hunt with my boy. Hes a little too grown up now. Just keep trying the best you can.
I don't have a problem letting them go first. Problem is we never see anything when they are with me.