Hello! I may be a little late for this, but last summer my two best friends and I got to cruise together. We're all 16 y/o and we had the time of our life at Vibe! We were on the Dream. It was honestly one of the best things we ever did together as friends. We still talk to the people we met on vacation, and it's been over eight months since our cruise. What I did notice, at least on my cruise, was that everyone would leave Vibe at 1 am-ish and we'd either split off into the groups of friends that had formed and walk aimlessly around the ship (being quiet of course.
) or everyone would go to D lounge and hang out for another hour or so. I would say that you must go to ice-breakers or at least go the first night. That's when you start to learn named and friend groups form. If you miss the first night, joining in with everyone later on in the cruise seemed to be a little awkward.
Hope this helped!