Lam,
The only adults that receive any benefits from the government are *NOT* on disability or are elderly.
Single people that are not on disability or elderly can apply for section 8 housing vouchers under a 'family' classification.
Same with SNAP.
A household made up of 1 adult that is not on disability or elderly can apply for SNAP.
can apply doesn't mean they are going to get those benefits not with state governments being tapped out and reductions coming at the Federal level. you can apply to MIT with an 700 SAT score but your not going to get accepted either.
I know people in LMI households in Vegas that were denied benefits so I know first hand that it does happen. and if you look at the qualifications you'll see that most people that receive vouchers (73%) are the working poor with incomes that are less then 30% of the median and the rest are about 50% of the median for there area.