Minimum age

May minors book their own stateroom? Are they allowed to visit the casino and to drink alcohol?

Minors may book their own stateroom under the following conditions:

Parents or adult companions are booked on the same ship.
One of the minor passengers in the stateroom must be at least 16 years old.
All passengers who are 21 years old at the time of departure may travel alone without restriction.
Passengers under the age of 21 are not allowed to buy or drink alcohol on board.
Passengers under the age of 21 are not allowed to visit the casino and to participate in gambling.
Passengers must be 21 years old to participate in bingo games.
Since bingo games do not take place in the casino, minor passengers accompanied by an adult are allowed to stay in the theatre during bingo games.

How about a Princess Cruise as a present for graduation or for the 18th birthday?