Are drivers mental or what ?

TF

This is also my understanding of the situation.

That is my understanding too, TF. Fog lamps, front or rear, do dazzle when not used in accordance with the regulations. Driving at night with front fog lamps on is the equivalent of 4 dipped beams and causes dazzle to oncoming traffic. Even worse when raining as the low beams reflect off the road surface. Driving lamps and spot lamps are pretty much the same thing and provide an additional pair of main beams. They should be wired to extinguish automatically when dipped beams are selected.
Daylight running lamps are there to warn road users ahead of the vehicle of its approach and is why they are brighter than normal side lamps. I don't see the point of switching on side lamps just to have have rear lamps on aswell. If visibility is reduced, ie, rain, fog, snow, dusk, then the dipped beams should be used anyway.
Some vehicles have turn signal lamps that come on when the steering wheel is turned and illuminate the kerb in the direction of travel. Some have dipped beams that swivel with the steering.

Admiral, -Sir!

I detect that you have recently changed your Avatar and I would wish to record my thanks, - The old one scared me and one of my Grandchildren half to death!

TF

Pirate to Peerage in the click of a mouse. Must have powerful connections.

I was suggsting that 4 x 35a is dazzling whereas 2x 35a (70a), when the fog lights are switched off, is not.

 Read an article many years ago about how much extra fuel world wide would be used if all cars were fitted with daylight running lights. The answer to this question was an incredible amount, 

I wonder if that was before the days of LEDs Mickey? As regards the comments for driving tests after a certain age, I am in favour of that. I am tested every year by my employers to see if I can still cut it and I welcome that. Helps me to continual improvement and keeps us all a little safer!

Are drivers mental or what? yes, some of them drive like they are!