I remember what it was like to be 17, doing stupid stuff at HS parties like drinking beer through a straw for more of a "buzz" (doesn't work), stealing from the liquor cabinet, etc. I thought I was sneaky becuase my parents didn't know, except that they themselves were alcoholics and I was too dumb to figure it out (I thought all adults drank 2-3 evening drinks, 8 beers during a football game, etc.) until I was over 30 years old. Take it from us preachy adults, alcohol is not all its cracked up to be, can get you in a whole lot of trouble, and can make your life miserable. I'm sure you'll find plenty to do on board without resorting to drinking.