fog

[stuffedpike20]

It's foggy here today, but few drivers have any lights on.
I think some of the EV drivers don't want to drain their batteries.

[Bill_qaz]

The worst are cars with DRL and owners not realising they are fronts only, so no rear lights in poor visibility unless the lights are switched on. They then rely on automatic lighting that doesn't function in fog or rain as not dark enough to trigger the sensor.

[stuffedpike20]

The worst are cars with DRL and owners not realising they are fronts only, so no rear lights in poor visibility unless the lights are switched on. They then rely on automatic lighting that doesn't function in fog or rain as not dark enough to trigger the sensor.

I had to tell one of my neighbours that she was driving about in the dark with no lights at all on at the rear.