Lemmy, or indeed the entire Fediverse, is middle aged nerds. Older non-nerds are on Facebook and Twitter. Older nerds are on IRC and Newsgroups, middle aged non-nerds are on Reddit, middle-aged nerds are on Lemmy/Kbin/Mastodon, younger non-nerds are on Tiktok and Instagram. There are no young nerds (see the growing epidemic of Gen-Z being baffled by Technology https://futurism.com/gen-z-baffled-basic-technology).
Social Media is like a school dance in the 90s. Islands of people will emerge with similar age and interests, and they just stay there, because that's where their people are.
The first example in that article is an office photocopier. I'm a middle aged nerd and I am regularly baffled by those things. Paper orientation is the least of the problems with those psychotically uninitiative beasts and their cruel and unusual menu systems.