Sensors need to prove themselves, but I'm optimistic that senors will soon be better. I have one set of eyes looking in one direction (whatever my field of view is, lets assume 90 degrees for discussion). I can never look two directions at once, but in fact I need to be looking all 4 at once. If I allow enough margin of safety I can get by since danger general is coming from at most two predictable directions but there are situations where one of the other direction has a danger that I can't predict. (for example: right turns where I look left for the danger of cars coming and miss the pedestrian trying to cross from the right - since pedestrians are rare a the intersections I drive nobody expects them)

I use my adaptive cruise control to prevent tailgating. Any time I find myself getting annoyed with a slow jerk blocking the left lane, I force myself to turn it on to make sure that I don't subconsciously creep up on his butt (because I know that's a thing that I sometimes do). ... I have also taken my owners manual's advice on the use of the high-beam flasher ... it calls it a 'flash to pass' ... so now I give a little blink of the brights after setting the cruise. Probably safer, but sometimes I fear that it may induce road rage.