My son is just about 3. For his 2nd birthday my inlaws told me they wanted to get him a bow. I wanted it to be more than a garbage plastic toy. I knew that my local shop had some low weight wood or fiberglass bows (under #10), so I sent them there. To my dismay they brought back a metal compound made for little guys (pretty nice for what it is, came with 3 tiny carbon arrows). Anyway, we shoot together at home and out in the desert, he loves it.
Hopefully gonna get a small fiberglass little guys stickbow for him this year, he wants one like daddy.
How about you guys with your kids?