Hey, welcome on my favorite soapbox!

That many people don't know what a file is, is most probably down to the very explicit war of one company, namely Apple, on the very concept of a file. And I fully agree that it is a terrible idea that makes people completely forget that what they're handling is actually a computer that could be doing so much more than what Apple allows them to do.

Microsoft has done their part too. Try using a modern Office 365 program and see how many clicks it takes to get to an actual file browser.