I sailed March 11-18 last year out if FLL. Maybe 100 kids under 18 and well behaved. 100s of college age "kids" there on their own. This was a significant dynamic change in my experience compared to the New Years cruise with over 500 kids, and many young couples along with your more traditional over 65 crowd. Im Only 38....i will likely never cruise a short itinerary in March again. Think power drinking crowd, large groups out and about and loud well into the wee hours. In talking with people that did B2B cruises around those dates the week before and after were the same.