And yet we have Waymo building 2cm-resolution maps and not operating outside of mapped areas, and (more scarily) Tesla geotagging false positives where Autopilot misidentifies some roadside feature and panic brakes.
Then think of what percentage of the time they're right.
But hey, that's not a realistic danger in the city, right? Well, look up the sinkhole named "Steve" that opened up in the middle of an Oakland, CA freeway.
Then there's Highway 1, which is known for landslides. Not to mention that little incident with the Bay Bridge back in '89...