I went on a carnival cruise last year. It is more of a family shipline rather then a teen drinkathon…they do have tons of people walking all over the ship with the “drink of the day” They make alot of tip money so of course theyll ask you if you want a drink. I didnt seem to mind lol. The security is pretty tight there so i dont see anyone causing problems for yah or letting things get out of hand. My parents are actually leaving on a carnival cruise this sunday. They go every year and love it.
fyi - I believe passports will be required by carnival starting next year.