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.
Coming from a simulation software company here, not everyone in my company will know how to deal with servers or IT security and I think it's ok. The programmers and engineers are brilliant, creative thinkers, all highly educated, but some just never bothered to learn this one thing. It's almost offensive how our IT department treat the engineers, as if we'll break anything we touch, but I get it from a security stand point.
As a student, I used to work part time in server maintenance for our uni, that's how I personally got that knowledge. But even people working in the "tech industry" don't all have the same sets of skills or tech interests.