If your kids enjoy playing games, you can show them one of the play-to-earn games available (check https://zebedee.io/play). I prefer to reward them for doing something useful, but this is also one additional way for them to stack some sats 😀

My son plays Sarutobi (available on mobile) now and then... He had to learn how to transfer the balance from his ZBD wallet to his LNbits wallet, so at a minimum this is helping him to become more familiar with Lightning stuff 😄