Homeless people often aren't homeless because they lack homes. It's a very loaded and misleading term. There are usually many other problems that they need help with, and homelessness is often just a symptom.
https://www.noahpinion.blog/p/everything-you-think-you-know-...
Indeed, it's the primary driver of homelessness.
Things like drugs and mental health make things worse, but "at the margin" as economists say, if your housing is cheap, you might be able to hold on to it even if you have some problems with an addiction. There are plenty of wealthy people with drug habits who are not homeless.
That’s not to say housing costs aren’t a problem, they are but they have to be prepared for other problems as well.
And I'm no expert, but I imagine there's a circular relationship between the issues that homeless people have. Not having a home often means no address (unless they're able to access a PO box or similar?) so difficulty receiving mail or getting a bank account; it can mean less physical security so a higher risk of being a victim of crime (e.g. theft, assult); a higher risk of problems with the police; probably greater risk of ill health due to living conditions; and far less psychological security - to name but a few.
The fastest growing demographic of homeless people are entire families.
[1] https://homelesslaw.org/wp-content/uploads/2018/10/Homeless_...
Finally.. this is all from a survey from the "U.S Conference of Mayors" which is mostly a lobbying organization as far as I can tell.
One day I saw a little girl (10?) and her younger brother standing next to a tent, staring right at me as I went to my 6 figure job.
No child anywhere should be homeless.
So your saying homeless people actually do have homes??