Honestly that's a pretty neat idea, and I understand like ya gambling isn't something we could just slid in cause our age group but there's an easy work around, lets say there playing a game of poker and it cost 5 tokens to join, the player that wins can be rewarded 30 tickets and the loser can receive 10 tickets. As long as both players pay the same amount and both receive a guaranteed prize you cant caqll it gambling really haha because even the worst player that never wins can still earn enough tickets to buy something.