it ususally depends on the time of year you are travelling- as with most things. If you are going during peak season, its generally a younger crowd. If its during the low season- expect older people, who are retired, and able to take vacations any time of the year. I have heard that norwegian doesn't usually house a young list of passengers. The average age on a good cruise, is approx. 45. thats the youngest i've ever cruised with. I know Carnival houses a younger crowd usually.. so i've heard.