while this stuff is perhaps more timeless than 'how to use https in google chrome version xxx', its also in many instances not really relevant to the average user. most people are not going to learn the details of how to properly use various plumber's instruments; they dont have the interest, the desire, or the reoccurring need to be able to use them. but perhaps there is a way to teach them the basics of how drains and pipes work so they can not cause problems in their plumbing, and, if interested, can make an effort to crudely diagnose issues when they occur, and then proceed to their reading of the manual to figure out the specifics of how to actually fix it.
in the case that you arent one for analogs, what matters is a solid, albeit general, sense of how things fit together, general enough that it will apply essentially the same in 5 or 10 years as it does today, clear and specific enough to actually understand and apply.
The vast majority of people will never use vim or emacs. but a great many people will use computer networks, and might stand to benefit from understanding a few solid principals of network security and architecture.