You will be in Circle C but having said that as far as I know you dont have to persay just hang out with just that age group. You can find others in the older age group and hang out with them. I would say go to club 02 and meet people then just hang out with them elsewhere
There will probably be alot of kids if its when school is out, we have gone when school is still in and there are about 500 kids still on the cruise. Have fun and dont worry you will meet plenty of people.