If you have never been poor before, yet alone been without a place to live, it is a psychological shock to become homeless. I was a homeless person in the South Bay area of Los Angeles County for more than two years.
While you are still reeling from the shock, you realize that you must learn to adapt as quickly as possible, not because you want to, but because you have to. You have no choice.
You must learn to live without privacy, without a bathroom or shower. You must learn to sleep in terrible and strange places. You must learn to pick through garbage if necessary. Eventually, even though you appreciate the meals, you must learn to wean yourself away from the soup kitchen before the dependency cripples you altogether.
Then, as time passes and you have learned your lessons, you are called "crazy" because you are different or "lazy" because you may appear to "like" it. When you are forced to do those things you never would think of under normal circumstances, you are accused of "having the mentality of a street person."