I dispare, what happened to general knowledge/education—even if the camera owner had never previously seen a film camera? Tragically, this has to be a quintess

I dispare, what happened to general knowledge/education—even if the camera owner had never previously seen a film camera? Tragically, this has to be a quintessential example of the entropic nature of knowledge. I've often thought it wouldn't take much disruption to society to bring on a new dark age, and worrying stories like this seem to confirm my fears.