You didn't mention what time of year you are cruising on "Sea"? If you are going during a school break time, there will be plenty of younger folks, families with kids etc. Since thats the time we usually cruise we always have lots of kids on board, which doesn't bother me at all. You should find a nice mix of people on the other times, just not as many kids. Is this your first Princess cruise? We just did our first Princess this year and you'll be in for a treat, enjoy the ship.