We just did Carnival Glory with myself 38, husband 36, daughter 22 months, son 13, son 15, daughter 17, mother in law 60 and father in law 63 and everyone had plenty to do for fun. Us and the inlaws enjoyed all the shows and daily activities and island visits, oldest daughter had fun with the teen clubs, swimming, contests, etc... 15 year old enjoyed all the sports onboard and 13 year old enjoyed arcade and all the food, pool, etc...
We've also said RC before and it's also a great line although I'd prefer RC if it were just me and spouse and no kids.