There is not so much a reason but a series of unfortunate circumstances that result in homelessness. Loss of job, illness, loss of the breadwinner in the family. Of course there are people living on...
Usually the City where the death occurs pays for a homeless persons funeral and burial if the person has no relatives or family found to claim the body. The City gets the money from taxes of the...
Various reasons. They may include mental illness, drug/alcohol problems, unemployment, abusive family members, disasters, and other reasons. A small percentage may chose to be homeless- such as hobos.