Well I have vision thanks to the cameras low enough to spot a toddler staring at my headlights, and overly sensitive sensors that pick up every leaf and twig. At highway speeds it will take over and slam the brakes on for me. Cruise control matches speed of the vehicle ahead of me, and the lane assist is almost parental.

So the answer is... you, and children, and other squishy things either out of or inside of smaller vehicles.