@Rasczak: What kind of reply is that.. One that demands a response but on what, anyway, but is not one it self. If you disagree with yaaarrrgg's OP or find it stupid somehow, at least say what. There is something to be set here; what are your ideas about ownership? If you somehow find a discussion about this pointless.. tell us why...
Personally, i like bottom-up theoretical approaches to things. And that is what it is, i hope that your practical experience with it has not closed your mind about that. Is that what your sentence implies? that the current approach wreaks of lack of practical experience? I must say, i have never owned much, perhaps do not intend to.(Depends on how much responsibility i will want to have.) But i think i have a model about ownership in my head..
Even if there is some practical problems with it, they might be based on current legal systems; and thus do not mean they exclude anything here now.