Cruisers are old
Carnival might have the youngest cruisers of the regular, large lines, but this is relative. On our cruise, average meant old. I would guess that half of the passengers were over 60. I saw almost no one in their 20s, and relatively few (15-20%) in their 30s. I'm guessing Alaska brings out an older crowd.
Of course, that Windjammers line almost makes me wish I were single and 30 again.
In case my wife sees this...it's just a joke!