Blimey, tape decks in cars, that takes me back.
You make some fair points matchboy, but we're are so interconnected with our various 'devices' these days (I'm no different) that it's easier to get drawn into fiddling about with these things, and continuing to fiddle with them if they don't do what we want the first time, or the second, or the third.....and so on. At least with a cassette you just shoved it in, listed to one side, ejected it, turned it over shoved it back in and listened to the other side. In those days people did actually listen to whole albums and not just a collection of random tracks as is the modern way

so arguably there was less messing about once the tape was playing.
It takes more discipline to ignore today's tech when it gets a bit twitchy and focus on the driving. Like you I try to avoid changing stereo, aircon settings etc, etc when the attention needs to be on the road, and make very few calls on the move. But it's other drivers who are less disciplined that would worry me, you only have to look around when you're in traffic to see everyone head down and texting. What do you think those people are going to be like with their fancy new gesture control? Terrifying

I'll be pleased if the current touchscreen tech in the MK7, and the forthcoming MIB Gen2 (if I ever get my R) is an improvement on the Mk6, which frankly, is a piece of crap!