For many of these families, the issue isn’t that they don’t qualify for help. It’s that the help they need isn’t available. That’s because unlike some other parts of the social safety net — such as food stamps — affordable housing is not an entitlement. Once the money appropriated by Congress runs out, the aid stops, no matter how much need there might be. According to the Center on Budget and Policy Priorities, 3 in 4 renting families that qualify for government housing programs don’t receive any assistance.