Mental illness is the cause in many cases. Here in N.Y. when they decided to close some mental hospitals and allow people to fend for themselves, the homeless rate skyrocketed. So many of these people need mental health care and until they get it, the rates will be what they are. Others, let's face it, are simply lazy and don't want to work. There's one kid in his mid 20s that frequents a 7-11 near me. He's obviously not a 'bum' in the sense that many of us think of it, but nonetheless there he is, day after day. I had a conversation with him one day and mentioned there are tons of retailers looking for help. He claimed he had filled out many applications but he said, 'they told me I did it wrong'. Does he too have issues? I don't know.