Most homeless people have mental problems, and they didn't chose, but were forced to be homeless.
I did a post last year in local reddit titled "Be kind" as below:
One warm day this summer. We went cycling on our regular 25km downtown route. We stopped half way and sat on the bench near Vancouver@Rockland for a chocolate break. An ordinary looking and quiet man was sitting on the next bench and we offered him a piece. He hesitated first, then thanked us politely and started telling us that he was there visiting his son, and his story of becoming homeless recently and how he was trying to maintain his dignity through the ordel.
We listened to him but couldn't find many right words to say, other than a nod of sympathy. This gentleman's story told us that life is very complicated and anyone, ourselves included, could run into tough times. A few kind words and even a small piece of chocolate would warm one's heart during those trying periods.
