If only there were some sort of regional authority, a local group of people to whom we all gave money to, that could hire someone to administer such a system. This group could take on the responsibility of running, not just this neighborhood network system, but also, I dunno, the fire department and the police department and maybe also the schools?

I know it's an "out there" crazy silicon valley leftist idea but maybe something like that could work?

Okay no but for reals, the USPS could do that!