Housing isn't prison. You can go out on the street, come back home to sleep/shower/eat/warm up/play Night Crawlers or whatever you want to do at home. I hope we aren't getting confused how houses work.
But the main point is that some need housing because of their condition, and some need it to even get a starting chance at life, getting a job or go to school and later get a job, etc. We as a society benefit from both. And as for the very very few that want to be homeless or just became homeless, there are shelters (which I think USA actually kinda does have or has had a lot).
All of the above also makes financial and economical sense.
That is perfectly fine. You don't need to force people to live in a house if they don't want to. But kinda hard not to want to be in a warm house during freezing Finland winters.
Then they're just a person exercising their freedom to move around on the street. Unless you're suggesting that they prefer to be homeless, which is ridiculous.
Well as someone in recovery, I have seen everything. No one “wants” to be homeless, but most people here don’t know anything and downvotes prove they really don’t want to understand. Only pontificate.