ITA. I knew about alcohol poisoning by high school. I also knew that if my parents caught me drinking I'd be grounded for the rest of my high school days and probably have to live at home while I went to college! It's a tragedy, and one that may or may not have been preventable with education. It also could have happened on land. Do they sell alcohol to 18yos on cruise ships? I know legal drinking age is different by country.