My children attend a Title 1 school (one is in a GT magnet there, one is not yet) with a high level of child obesity and the amount of food treats is astonishing. At DD's previous school, a charter with many "hippie" parents, food was less emphasized. Her preschool was best of all--fresh fruit for birthdays with optional whipped cream. The kids did not care. I think some parents did. But really, why? My kids get cake at home AND cake at their parties. Do they really need cake at school??? Of course not.