this is probably old news/i'm late to the party but i just realized one of the reasons for the "kids don't know how to use filesystems" thing is probably that you have to constantly beat the big modern systems into even showing you a coherent filesystem interface in the first place a lot of the time
even leaving phones aside, both macOS and Windows love to present you with "favorites"/"recent" views in their explorer programs, will put you in useless places by default when launching new explorer windows, alter their layouts behind your back based on bizarre heuristics, and have so many dongles and widgets (but not useful ones, like breadcrumbs) that finding how to get to "my home directory" for example is really not a straightforward process. of course you would prefer to just fulltext search to find things if you've never had the pleasure of using a boring old file manager before