You failed to establish a causal connection between regulating bike lights and whatever you are on about. Yes Germany is mostly car-centric (I'm not German and

You failed to establish a causal connection between regulating bike lights and whatever you are on about. Yes Germany is mostly car-centric (I'm not German and don't live there) and the UK is car-centric too, but I'm mostly a biker and get blinded by bike lights all the time. StVZO lights help with that.