My husband and I (we're in our 30s) took our parents (in their 60s/70s). Next time, we'll go on a younger or more mixed cruise. Not many young people or people our age on this ship. We wanted this itinerary for various reasons and it suited all of us but I think we'll book the Caribbean - just the two of us - next time. I have to finish paying for this cruise before I can book the next one.
Thanks for your advice and I'll keep reading posts.
Enjoy your next cruise.