Why aren't M dashes taught in English classes?
It's been years since I was in grade school but I very vividly remember being 15 years old, reading a book, seeing these interesting long dashes all throughout the text, and wondering what it was and why no one had ever talked about it. I ended up googling it and then incorporating it into my writing. Oddly enough, though, it was never once mentioned in any of my English classes.
Apparently AI uses it a lot and it's a red flag to teachers that someone used chat GPT to write their essay, with the kids then getting caught when they're asked to explain how an M dash is actually used and they fail to answer, which is funny but also points out that a very basic feature of written language is not being taught.
I know this is a really trivial thing to bring up but what is the reason for leaving it out? I would think that if periods and commas are important enough to teach, M dashes would be important, too. I guess not, though.