Mmmmmmm, Squirrel good, taste like chicken. Pick yourself up any wild game recipe book, and it's sure to have squirrel in it. Use that .410 your gonna get for your wife to practice with instead of a 20. Great idea starting kids out with a single shot, teaches them to make each and every shot count. But remember that a .22 will travel about 1 mile, so if your hunting in a semi-populated area those errant shots up into the sky will be ending up who knows where. Have them practice on paper first. Teach patience.
bullet placement is gun control