I'm 29, a massive techie, and I'd rather real climate controls.
I believe the touch sensitive light controls thing is more like a laptop touchpad than a touchscreen- it physically 'clicks'. Certainly that's what the one in the ID3 does, or at least the one VW had in their Berlin promo place in January!
Regarding ageism... my 21 year old sister is totally inept beyond instagram, whilst my 57 year old mum is pretty good with tech. She has an iPad, iPhone, and PC, and uses all three perfectly well. As does my 65 year old dad.