When we arrived home from the hospital after the birth of our first child, a son who's 14 now, there was a Daisy Red Rider BB Gun on our doorstep from his uncle.........so we started pretty early.
I'm sure there's thousands of metro's that think I should be jailed for exposing a child to this.........
Doesn't seem to be bothering him though.
Daughter's first .22 being properly modified, she was 7 at the time.
Son with his Remington Model 34 Junior Target with factory peep sights.......one shot one kill at 25 yards, he was 9 at the time.
This is against the law now, she was fully capable of safely operating this quad solo at 7, took about 10+ hours of hands on training.
Don't let other's opinions guide you or your children's desires. You can't find out if their interested unless you expose them and pay careful attention to their body language.