We are planning a cruise with our 15 yr old moody teenager She does not always want to come with us to all the evening events and prefers to stay in the room and read or watch tv at times. Is there a way we can check in on her just to see if all is ok while we are out of the room? Does texting work on the boat? Are there public phones we can use to dial into the room to make sure she is ok? Is it safe for a 15 yr old girl to stay in the room by herself? Any opinion/suggestions would be appreciated.