My wife and I started talking about this after she had to help an old lady at the DMV figure out how to use her iPhone to scan a QR code. We’re in our early 40s.
No one is saying things should not just work. The problem is they still break sometimes and people have no idea what to do because it’s rarer now. Also when you get into the business world, you need to use an actual computer to do work. A tablet is not going to cut it. Tablets are mostly for consuming/using, not creating. It’s a lot easier if you know how to use a computer to do that (Windows, Mac, whatever but you need to understand that basics).
It really depends on the kind of work you do. My mindset is, if you’re interested in it, invest time in learning about it. If not, then not. We don’t have to go all “kids these days…” or look down on people who aren’t as interested in techology as we are.