memes

It makes total sense if you're of the generation(s) whose brains were fucked up by the American public education system pre-1980 or so, and were never taught how to understand abstract concepts nor any critical thinking skills. They learned everything by rote recitation.

Everything.

FYI, this is probably in no small part why your parents struggle with technology or at the very least anything with an on-screen user interface so much.

Up until then, "thing you stick in machine that plays movies" inevitably involved some manner of tape. I imagine the majority of the public has absolutely no idea nor any interest in how this actually works inside the machine; as far as they're concerned it's either magic or complicated nerd technology stuff that they have convinced themselves that they'll never understand. It was just hammered into them that When Done With Movie You Must Rewind (or else mom/dad/the video store will get mad at you). However, no logical connection is made between the medium in question and the act of rewinding. Merely that it is a movie thing. Movie things get rewound.

I'm sure this is also why a particular generation insists on calling Nintendo cartridges "tapes."