Play with your kids!
Nothing is more fun than beating your parents at a game! if necessary, you can give your kids a few stones as a handicap -- or let them give you a few if they are already too strong!!
Look for other kids to play with!
Of course, another fun possibility is playing with other kids. Maybe there is already a club in the neighborhood with kids who play. Or why not invite some of their current friends over and learn together. We can help with advice and learning/playing material.