I took my daughter to the range with a chipmunk the first time and set up a pie plate at 25 yds. She shot the big 4" bull and put em all in. that made her day I could tell. She was only 10 yrs. old. My son started at 8.
I think setting them up for success is the way to go. We mostly go to the tin can range when I take her anymore (which was 2-weekends ago and she's 23 now). She loved shooting the FN Mauser and Turk with mild cast boolit loads. Those slow moving cast boolits really make the tin cans fly! Start them young and make shooters out of them. You don't hear my kids bad-mouthing shooting and they are only going to help others have fun and serve to promote our sport. Good going!