Im taking a younger man on his first Elk hunt this September in CO, although he is paying his own way
I think you have a good point and challenge of sort their VC.
I, prior to your post have started a couple (father and two adult son) of fellows into bow hunting this winter. They aren't kids but they have very young children and Im sure they will move them into the sport in time.
The one son on his third or forth trip to the indoor range got his first robinhood. Prior to this Janruary he never shot a bow of any type.
I have done this type of thing in the past through the BSA, Explore units over the years. It can be enjoyable and does take time and patiences. The reward is worth the effort.