Is this because they don't use radars, and it refuses to stop for objects it doesn't recognize? Seems like it shouldn't be that hard to tell if there's somethi

Is this because they don't use radars, and it refuses to stop for objects it doesn't recognize? Seems like it shouldn't be that hard to tell if there's something in front of you and nothing behind you and always stop when you detect you can do so safely. Maybe you get a few false positives stopping for plastic bags in the wind but who cares, safety should always be first even if it slows things down a bit.