I don't think casey was receiving any kind of state aid. First, because there is a federal limitation. If you are under 22, and your parents are alive, how much you get depends on how much your parents make. CA was making enough that casey wouldn't have gotten squat. Second, there is no mention of it in the DCF paperwork. DCF always checks with a persons state aid worker if there is one, simply because if there have been any complaints or cancellations of service on a persons state aid for misusing funds, that is considered neglect of a child right there, if there is a child on the case.
Believe me, child welfare protocol and state aid are two things I am VERY familiar with.