Gdetrailer - I share your concerns around driving as a secondary activity to texting, eating, talking on hand held phone, poking at an on board computer screen etc etc for sure.
I don't think DRL should be mandated - I ran with lights on before it was mandated in Canada, I drove for 2 trucking companies that required running lights on before it was mandated.
If people want to run with less visibility than they could have that's fine. The vehicle that doesn't see them due to blending with a background might be substantially larger and cream them a good one.
The other control we don't use correctly in USA and Canada much is the "visual horn" or momentary high beam flash on the high low beam multi switch.
It is a major affront to the other driver to flash your high beams "do you see me?" as they are driving in your lane passing without enough room.
And oh lord if you use them as in Europe - "I am travelling at much higher speed than you and am overtaking" or "I am overtaking you" on a 2 lane