Yeah, I should have made this clearer. When I wrote, "some homeless people voluntarily choose the lifestyle" I did not mean to imply that they prefer it to all other possible lifestyles, simply that they could get indoors if they wanted to, but that would come with downsides that they choose not to accept. But I did meet one person who explicitly said, "I have a home but I have no desire to live in it." But much more common was the sentiment that they could get a place to live but then they'd have no money left for anything else.