I think DRLs are a horrible invention. I see people almost daily driving after dark with no light on, the DRL is on so they have no clue thay they never turned on the lights. No taillights or marker lights while driving on the freeway. Morons. Can they save lives, maybe. People that do no turn on headlights in the rain and fog I guess, but broad daylight no difference at least as tested in the US.
Now, I think all cars should have auto headlights and you should not be able to disable the feature. That would solve the no light drivers and people that wait until dead dark to ever fire up the headlights, no light fog drivers and all would be solved. Love that feature and it should be mandated. I also think that the new HR-V feature where after the wipers are on for 30 seconds or whatever it is that the lights then come on. That should also be a standard safety feature, around here more than half the average cars in a massive rain storm will not have the headlights on. Both features are amazing and should be standard for sure. Those two features should have been standard way before back up cameras, they are required here now and while there were 6-8 people a year killed in backup accidents I'd wager there were more hurt by no lights on in bad conditions easily but that would be hard to investigate I imagine.
DRLs though, they suck and I hate them. There is no point to them and I will remove them whenever possible!