We in the UK are not in the EU anymore, but we still have their previous legalisation to live with.
But at least now we have no Euro sausage here!
Agree, DRL's are a can of worms where some makes of cars just have the front lit up, and other makes have front and back.
Where the big problem lies with front DRL's only, is that it can confuse drivers at night thinking all their lights are on, but only the front are on and the dash is lit up which confuses things as well. This leaves them open to getting smashed up the rear end.
The way I look at it, is not thinking I have DRL's at all, and when its night i automatically put the lights on, so the back is lit.