I could see well-mapped street view with good services built around it, and maybe a way to pay for and schedule regular updates, being used for towns to monitor public space long term too.
I think many things could be built on a better street view, but I also don't want Google to get yet another de facto monopoly in a new domain.
Waymo and others already do this, that's why they can only operate in mapped areas.
Given that Waymo is a google company, they almost certainly started with street view data.
I'm fully bought off on the "it would be fun" aspect. I don't see a value proposition for it, though.
Do I think it could be useful if you rehearse navigating a place before getting there? Yeah. Ish. I can see obvious military style value adds for that. Average person, though? I still have a hard time seeing the value.
Reminds me when places were offering video tours of places. Is a neat idea. But ridiculously low in actual value.