The White House told the Supreme Court it favored same-sex marriage. So did dozens of big corporations, a host of political and legal heavyweights — and 9-year-old Austin Covey. “My dads take the best care of me and my brother,” Austin said in one of the many legal briefs submitted to court. “My family is no different than any other family.” In fact, his California family is different from most. Austin’s fathers, Joseph and Kevin Covey, are legally married. Yet because it’s a same-sex union, the federal government doesn’t recognize it under provisions of the 1996 Defense of Marriage Act, now under review by the Supreme Court. But is such a marriage also different in ways that disadvantage children?