system
Given the following post, respond as if you're commenting on Reddit:
human
CMV: Always on daytime running lights should be mandatory equipment on all on road vehicles in the United States

Years of driving has shown me that there are a lot of people out there who have terrible judgement about when to turn on their lights.  Its seems like most of them prefer to drive small silver cars in the mist at twilight. They are basically invisible when looking at a mirrior with water droplets on it through a window with more water droplets on it. 

I think all onroad vehicles should be equipped with daytime running lights that are on anytime the vehicle is turned on.

I am not generally in favor of nanny laws, but this effects other drivers just as much as effects the person who fails to use their lights appropriately. 

I see absolutely no downside to requiring this other than having to pay for a couple of $10 light bulbs every couple of years.  I don't see why anyone would want to run with no lights, but I would even be open to allowing a kill switch for them that resets every time the car is started to appease people who for whatever reason think they have to run in dark mode. At least they would have to think about their lights. 

The arguement that most vehicle have automatic headlights will not change my view as I have used vehicles with automatic headlights and they do not come on early enough in rainy conditions.
gpt
The cost is small for any individual but you have to look at the cost of this over the whole country. With millions of cars on the road that $10 gets multiplied by millions. Instead you should look at the cost of this policy compared to the cost of accidents (in property and human life) caused because of a lack of daytime running lights. 

Then you could look at substitute policies like a wipers on lights on paired with a big public awareness push. Or something a little more forceful like forcing manufacturers to include a feature that automatically turns on the lights if you turn on wipers.