I sometimes wonder if the future of humanity sees the decline of the state, and people just live on corporate land (Sidewalk Labs as an early prototype of this idea) protected by corporate militaries (Blackwater)
An interesting tally was made recently¹ on the amount of privately owned land in London that fulfils the role of public squares, parks, and connecting passages between public roads. There is a lot of it, and you don't really notice it until you break their rules.
That is, if you are homeless, or just look destitute, or simply undesirable, you can be legally ordered to move on. You can be brutally awakened from napping on a (seemingly public) bench by private security appearing out of nowhere, simply because the local government made a deal where the project developer could do their project, as long as they provided a public square, or replaced a public road with a private pedestrian passage; but they own it rather than the public, and they can make their own rules there.
1: https://www.theguardian.com/cities/2017/jul/24/revealed-pseu...