The landowner of private property will exert every effort to attract people to their land in order to gain profit—voluntarily, not because they're forced to. This is far more sustainable. In contrast, public spaces, which are supposed to be freely accessible, often end up being even more restrictive. Just go to an airport once, and you'll understand.

every land should be private, that is the only logical solution (always happy to be wrong about something). a free society doesn't mean you can do whatever you want (i guess you can always do what you want, but you have to live with the consequences). you brought up the airpot (in another comment) which is private and people don't feel like they are in a prison. you kinda contradicted yourself i guess