Obviously your perception of "homeless" is that of people sleeping in parks begging for quarters to be spent on booze, drugs and so on and to be fair that probably is the "final" version of homelessness.<quoted text> Funny but just about everyone I know that was homeless, say over 95%, had at least one of those problems. Most had more than one.
But homeless people might be living with friends or family until they can get back on their feet, women and children living in shelters to escape abusive husbands/fathers. Homeless has become an umbrella word to describe various human situations.
As we speak, there are perhaps a couple of hundred thousand "new" homeless folks in the areas affected by the superstorm and I for one wouldn't mind it if some of those folks head to Central Florida with their insurance/FEMA checks to take advantage of really cheap homes and rents left behind by our financial tragedy.