Who controls the streetlight blockchain in your idea? You think the government is going to responsibly manage a system that is large enough to be impractical to alter? My local government is barely responsibly enough to manage basic utility maintenance, we’ve had 3 water main bursts in a month and it hasn’t even been below freezing that whole time.

I can’t believe a human being living in the world doesn’t see that any implementation of a secure blockchain requires massive funding for infrastructure. That money comes from 1 of 2 places, illegal enterprises that maintain control for security and manipulation, and legal corporations that will maintain control for financial security and manipulation. Modern governments don’t run projects like this anymore, they contract them out to corporations.

Keep in mind that the only practical use of blockchain that anyone has found so far, has been as a currency that requires no ID. The most famous use of these currencies was by John Mccaffee, who used crypto currencies to help him evade authorities for nearly a decade. So I don’t have much faith in a technology that has only shown a benefit to criminals with so much money that cash becomes impractical. Nor do I have to remind you that wealthy private individuals have been able to manipulate crypto markets with hilarious ease, like how Musk pumped and dumped Doge Coin years ago with a single tweet and most likely made millions in private, untraceable money.

Just because something sounds cool on paper, and makes it seem like it skirts governments and corporations, doesn’t mean it works in practice. Large entities inherently have more resources, and are primed to steal new technologies for their own use, especially when implementing that technology requires huge funding for infrastructure.