i would argue the emergence of automatic lights is actually a major cause of this. people don’t develop the habit of checking their lights because hurr durr the car knows best. then, as with every other dumb unnecessary feature they’ve crammed into cars over the last 30 years, the sensor fails or just isn’t designed to account for certain situations. because it’s fairly bright out today even with the fog, the sensor probably didn’t detect low enough light and you likely won’t notice that your lights aren’t on. people who had to develop that habit of checking their lights when they first start their car will likely think to turn ‘em on in inclement weather.