It's more over-all awareness they're going for, not making the choice between you and someone else. When you're in a car, your attention should be on driving. You shouldn't be eating, talking on the phone, or thinking about some complex life problem. And don't over focus on driving, like you're on a track. Open up your bubble of awareness, turn your head, move your eyes, and actively look for problems. Had I not taking this for granted I'd still have my Si.