The car is also assuming how the pedestrian will walk, I'm pretty sure we're just describing an adversarial game here. If the pedestrian guesses wrong they mig

The car is also assuming how the pedestrian will walk, I'm pretty sure we're just describing an adversarial game here. If the pedestrian guesses wrong they might be hit by the car, if the car guesses wrong the pedestrian might be hit. This means you can have easy rules that look clear cut, but in practice the risk for both parties makes me a pretty defensive pedestrian and driver.