Driving in dark not turning on headlights

Now, on a daily basis, I can find people driving in the dark not turning on the headlights. Some with their DRL on, some with nothing on. Incomprehensible.

I understand in many of the cases, dealer technicians turned the auto headlight off. Maybe there should be a regulation requiring all dealer/car shops to return the car to customers with light in Auto or On.

Thoughts?