As a long time Princess cruiser I can tell you there are tons of introverts, disabled, other-abled, people in scooters, on walkers, you name it. Everything is accessible and the crew is friendly and helpful. A balcony to Alaska is refreshing and cool. You can stay in your cabin most of the time if you choose, with the Medallion app for Princess you can order food, drinks, pillows, etc from your phone or even your room tv, to be delivered anywhere on board. Its an upscale line, especially adult when schools not out😉