I did confirm with agent on phone that the current booked room can add a 4th kid for free. Only additional fee added to room would be taxes for child. Family friend is an agent for RC. She said shouldn’t be an issue. Book the double occupancy room and get on triple occupancy waitlist. Alot of times people don’t finish making payments and rooms open up. 1 month prior, book child in friends room if needed. Seems like a pretty fair plan.
Still interested to know how a child gets on and off cruise with another adult other than their parents. Same goes for entering and exiting kids club. I know families don’t all get off boat every time with kids. Grandma, uncle, cousin, and adults not in same room must take kids on and off all the time.