Obligatory Sold a Story podcast link.
I can't help but feel that a lot of this is deliberate, the end result of decades of dismantling the public education system to further divide kids into the upper class in private schools, religious fundamentalists in home schooling, and everyone else abandoned to keep the population uneducated and in worse economic precarity.
Somebody please tell me that the kids are alright 
I was pretty shit at writing until I started writing comments in BBS forums and Digg.com in the early 2000's
You'd get this sort of natural feedback that teachers just couldn't or wouldn't do. Instead of pointing out rules or passive voice or counting the amount of whatever dumb bullshit, you'd get people pointing shit out that you had already said, but weren't clear about. And I learned to be conscious of linebreaks and how they affect the visibility of certain parts of the text