One trick that car manufacturers miss with DRL's is that rear lights are not on as well. I have seen loads of people driving in very bad light with just front DRL's which made car visible to other road users (whether actual car driver could see well is another matter) - but from behind the cars were not visible because no tail lights. My motorbike has headlight permanently on with ignition and also rear lights are on.
Cars controls seem to be getting more like microsoft software - very prescriptive and not always what you want, but hard to bypass - and sometimes just plain daft.