Normal
We brought our 2.5 year old to the kid pool on the legend, there were many others about the same age and no ones said a word. We had swim diapers on him, and the kid pool was in a remote location. In fact there was not anyone to enforce anything. But, I must say, this was about 3 years ago before most of all the huge illnesses occurred on the ships, So things may be different now. So give it a try.