Children totally accept — and crave — family rules. “In our family we have a rule for X” is the only excuse a parent needs for setting a family policy. In fact, “I have a rule for X” is the only excuse you need for your own personal policies.
I’ll do whatever it takes to win games, whether it’s sitting on a bench waving a towel, handing a cup of water to a teammate, or hitting the game-winning shot.