I do a lot of work with the homeless and as I've seen others ask, what does one consider homeless? Near my home, there are shelters of different types. The kinds that have you line up to get a cot for the night. The kinds that welfare places you in to give you a roof over your head for an undetermined amount of time in a sort of dorm environment and the kind that run programs for those who suffer addictions. There are also many "welfare motels". Technically, these folks pay neither mortgage or rent, but they are homeless. While those situations are depressing, sometimes dirty, and extremely stressful, knowing I had a place to go would allow for longer survival. Having an address to where a welfare check could be sent, food stamps could be provided, programs were in place to help me find a job and ultimately place me in my own living quarters would make survival possible. But again, is that what you mean by homeless?
Then there are those who are 'truly' homeless. The ground is their mattress, a stone their pillow, a bridge the roof over their heads. How long could I survive in that kind of situation? Probably not too long. Even though I live in the city, in a home that is in need of many repairs, on an income that is small, I am spoiled by my warm bed, soft pillow, and relative safety of a locked door.
Those living on the streets are in constant danger. Danger from the elements. Danger from other humans. Danger from disease and vermin. Not sure I could see myself sharing a bed with a rat, and by the grace of God, I will never have to. I have been jobless and have fallen on hard times, but God has always provided a way to keep my home and put food on the table. Perhaps that's why I have such a passion to work with those who are in less fortunate situations. I am not rich by the standards of this world, but I am very blessed to have what I do have.
Thanks for posing this question...it's a good one!