I'd add, as soon as you start doing it at some scale, it becomes harder. Because, sad but true, among homeless people you will find an over representation of pe

I'd add, as soon as you start doing it at some scale, it becomes harder. Because, sad but true, among homeless people you will find an over representation of people using drugs, with mental health problems, aggressive. I'm not painting everyone with the same brush! But as soon as you build a few 10s of those, you will have these issues. They will then affect other people in the area, both home owners and temporary tenants. Cambridge, UK is doing an experiment, where they put up little shelters, not totally dissimilar to this, but in homeopathic quantities: 3-4 at a time. It seems to be going well, but (a) that's still tiny number, and (b) I get the impression neighbours still don't like it.