can I share subscriptions but not allow others to make purchases?
Can I share my apple subscriptions with family but not allow them to make purchases?
if you are in a Family Sharing group, here is how charges will be handled: "If you're in a Family Sharing group, purchases are charged to your personal Apple ID balance. If you don't have enough Apple ID balance to pay for the purchase, the remainder is charged to the family organizer's primary payment method. "