[j8hn]

In regards to those living on the streets, the main cause of them being homeless is substance abuse and mental illness.

[Johnythree]

And the main reason for substance abuse is the lack of jobs and the lack of hope.

The reason that most people stay clean is the need to get up and go to work the next day.

And the reason they go to work is because it will give them a better standard of living.

Take away permanent jobs, reasonable wages, affordable housing, and many people will simply give up hope.

[j8hn]

Is the main reason for substance abuse really lack of jobs and lack of hope?

I'm curious where you got your data from.