Here in North Carolina, it is generally white, raggedy looking males. Often, they have an extremely skinny crackhead looking woman sitting within 10 feet of them for sympathy I suppose.
About 5 years ago, I needed a couple of laborers for a day to help me with a project i was working on. I drove to the local corner where there are always at least 2 or 3 standing there with their "I will work for food" signs. I offered the guy 12 dollars an hour for about 6 hours work- painting the outside of a friend's house, a wooden fence, and a separate garage. 12 dollars an hour tax free cash is not a bad pay for this area, especially if you have nothing. The guy yelled and cursed at me-
he said- "get the hell out of here. I make more in an hour standing here than what you are offering!"
After that, I have never offered any help to anyone on the corners or ramps again.