And, parents cannot opt out, as a father learned while trying to control the amount of chocolate milk his son drank. The father let him get chocolate milk as a treat, when he behaved well, but with the kiddie cafeteria credit card, he was getting it as often as he wanted, along with other expenditures his father didn't approve of. While I don't agree with using food as a behavioral incentive, as that -- in my opinion -- can elevate the value of certain types of food, potentially encouraging bad eating habits in the future, I fully support his right to make dietary choices for his child. The story also brought out the element of a new type of lunch money stealing, the fraudulent use of other children's pin numbers. I suspect, judging from the amount of outstanding cafeteria debt the schools using this method are having to try to collect, that market forces will resolve the matter in the end, because I'm sure I'm not the only parent that would decide that, if I am refused when I want to opt out of cafeteria credit for my child, then any further charges are not my problem, not after I said no.