Well I can tell you my son has been approved for ssa he did not have enough work history for SSDI. I was told that he would have had to be a child star to collect SSDI. Anyway he was approved for SSA. But he currently does not get any money from them. He is able to hold a job 25-30 hours a week I turn in his paycheck stubs to the ssa office. It keeps his case open.