My daughter is 23, so I don't have this problem BUT for me, if I knew that my 3 year old wasn't going to eat much of anything, it wouldn't bother my conscience at all to make my reservation for 2 adults (if I only had the 3 year old) or 2 adults one child (is the 3 year old had an older sibling. I confess that we flew on planes with our d on our lap until she was 3 without a ticket...but they didn't ask then. I know it is still a form of lying, this don't ask , don't tell philosopy....but since we are talking about FOOD here...if I took anyone to a restaurant and all they had was water, I surely wouldn't expect to pay. (THo I realize that if there is entertainment, that is part of the cost)