Haha, good.
Indeed.
Uhm... Yeah we do not own it for real, but we own it if we are the owner (at least law says so - of course in a more formal way haha).
"I actually tend to think that a voluntary world would result in collective "ownership" (use) of land. Whatever community you're a part of uses the land, and then inside of that, you know "ok, john sleeps over there" and keep track of it casually similar to what you'd do in a family environment."
Yeah, that is right. We only say that a certain person/the state... owns a part of the land because we need to live/work/... somewhere. And of course because of some other reasons, eg. structural reasons (person A lives there, person B next to him,...).