Most people who aren’t interested in tech have to be taught this as they have no idea what e-mail actually is.

I would have accepted this 20 years ago, but not anymore. People need to have a basic understanding of how the tools they use daily work. I know, they don't. And it's one of my pet conspiracy theories that Big Tech abstracts their users away from how things actually work on purpose. The results are devastating, esp. when it comes to where IT tech crosses politics.