Tipping is automatic. They put it on your charge card or ATM when you first go to Check In. The crew does as much or more for children as adults, so I vote yes for tipping. The other aspect to consider is this; the employees make something like $2.00 per hour from the cruise company. The tips are their main source of income. From my experiences while aboard cruise ships I can say that the crew members work their butts off. Our Waiter and Assistant Waiter worked 12 hours a day, seven days a week until their next day off.