Is there any cruise ship, going to Mexico, where an 18 year old can drink on board?

Question

Is there any cruise ship, going to Mexico, where an 18 year old can drink on board?

Answer 1

from Carnival' page

Drinking alcoholic beverages:  

Guest must be 21 years of age or older to be served alcohol on board. Proper I.D. with birth date is required.  

Casino:  

Guest must be 18 years of age or older to play the tables and the slot machines.

Guests under 18 years of age are not permitted in the casino.

Answer 2

You can drink beer or wine on board if you are 18.

Answer 3

Don't be in such a hurry to drink.  Wait until you are old enough and are more responsible.  You could end up "overboard".

Answer 4

Some cruise lines offer a waiver your parents can sign to allow you to drink if you are 18.  (or at least they used to!)

Answer 5

if the boat is an american line then NO.

the only way would be if someone bought it for you.