Are you aware of what the D in DRL stands for?

Your vision may be good enough to see ahead of you by candlelight, but other drivers are not going to expect a nearly invisible car approaching at night. Turn on your headlights.

DRL's aren't dim enough to make your car "nearly invisible". If it's enough light for the driver to see the road via reflection, it's more than enough for the oncoming driver to see via line of sight transmission.