it's a good idea to introduce people about bitcoin through card games but we have to be aware that kids can easily get addicted to games and money, then there's another problem: kids like sweets and toys if someone tells them about bitcoin = money they can also start demanding bitcoin to buy sweets and toys, and if the person doesn't give them they can easily be manipulated by unknown people on the streets. I think it is better for children to stay in their children's world and only when they are over 12 can we start talking about bitcoin with them even if it is through letters. I know that it depends on each country too, but from what I see in most countries children always behave that way and when they are women and their parents have no money and they are over 16 it becomes very difficult for them to educate