Or, because of how things in cities are right now: Your rent increased but your pay didn't. Now you are homeless because it's impossible to pay rent with money you aren't getting. Now you have your job and car but no home, and are homeless, and now people want to treat you as lazy even though you work 60 hours a week for jobs you've been in for a decade.
Rent has gone up almost double in the city I live in (a small city you won't think of) and nobody's jobs decided to double their pay, so there's a lot of people who literally can't afford just to have a legal place to sleep.
>This is the result of drug addiction not the cause.
Not always: lose job, lose house, get offered cheap accommodation, meet some people...seen it happen.