The inverse is an issue though. The car parks and turns off, with no obstacles in front. While parked a child/dog/bucket of concrete materializes directly in

The inverse is an issue though. The car parks and turns off, with no obstacles in front. While parked a child/dog/bucket of concrete materializes directly in the front blindspot. Next time the car drives, it has no knowledge of this obstruction. This isn't a huge problem for a car driven by a human, since you can and should check around the car before driving, or will have other context clues that there is a child or dog or whatever running around your car, but this seems incompatible with the stated goal of making all current cars into Robotaxis.