Haha funny story about this
my last cruise I was 14 but the 12-14 program was....not so good
so me and my friends, ranging from 13-16, tried to get the younger ones into club o2
the club o2 guy immediatley asked us our age and name and discovered we werent old enough and showed us his sheet of paper with every kid onboards bday.
We then made up these excuses like, 'thats not my birthday!'
In the end the guy just let us hang around as long as we didn't get into trouble.
so yeah if your on carnival its pretty relaxed, just get on the club o2 guys good side