I restock Rascals with pretty wood for kids and have a bunch of experience with young kids shooting. The Crickets suck because even bigger kids have issues cocking them. I have done a bunch of Chipmunks, too. The Rascal is far better in that respect and others.
The other important point for me is never give them a semiautomatic. I absolutely love the 10-22, but not until they are old enough to maintain focus. My grandson has not shot his yet, but he turns two next week.