Expecting every buyer to have the ability and discipline to be perpetually watchful for something terrible when almost all of the time there's nothing to worry

Expecting every buyer to have the ability and discipline to be perpetually watchful for something terrible when almost all of the time there's nothing to worry about is unreasonable. For most humans, standing guard (well) is really hard work, whereas for most drivers, driving is not. This is part of the reason being a cop or a soldier is so stressful.