‘Automatic headlights’ don’t work in fog?

[u/clynchy97]

About 40-50% of the cars we passed on the road today had no headlights on or only had the dim side lights. Do automatic lights not work in fog for these modern cars? Seems super sketchy

[u/KamakaziDemiGod]

Unless the visibility is much worse in reality than it is in these pictures (usually it's better in reality) the lights are just going to cause a haze and not make them more visible. This doesn't look like it's on the edge of the limit where you require fogs (less than 100m visibility)

I drove in the fog last night and you could see people's rear lights from miles away yet people had their fogs on and were just blinding everyone else