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It could make sense. We don't know the numbers.

Let's say net X lives are saved each year because of automatic lights turning on.

Let's say net Y lives would be saved each year without automatic lights, via more effective detection of drunk drivers and stopping them before they kill someone.

Is X > Y? We don't know.

> Eliminatung DUI is not a matter of detection

There are a lot of avenues to decrease DUI, among which one is effective detection combined with enforcement.

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smcleod 18 hours ago | parent | next [-]

The EU has done lots of reach on road and car safety, there's lots of data out there - just perhaps not in the US as many American made cars have significantly lagged behind in terms of safety features.

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throwawat19r83 18 hours ago | parent | next [-]

I don't know if it's an EU rule, but in my (European) country cars are required to have their lights on at all times, even during the day. The lights switch on automatically when you start the car

	▲	chuckadams 16 hours ago \| parent \| next [-]
		I'm baffled that daytime running lights are not mandatory on all models of all cars in 2025. My 13 year old Grand Caravan has them, though I suspect it's because it comes from the Daimler Chrysler era.
	▲	froindt 14 hours ago \| parent \| prev \| next [-]
		After I visited Iceland where it's mandatory, I liked the improved visibility so much I turn my lights on for every single trip. It was not a takeaway I was expecting to have from the trip.
	▲	SideburnsOfDoom 9 hours ago \| parent \| prev [-]
		It's a good idea in some places. An overcast winter's day in the North isn't that well lit by default.

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margalabargala 16 hours ago | parent | prev [-]

The EU also is far more strict on DUIs.

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cma 18 hours ago | parent | prev [-]

There may be something like that that does make it counterintuitive. Usually those kind of Malcom Gladwell paradoxes end up overstated.

There would be other factors, like drunk people are probably safer with their lights on too. Lane keeping probably makes it harder to detect drunk drivers too but also may make them safer.