What these people fail to realize is that most people come from some backwater or other, and that it takes real effort to develop communication skills that are more cosmopolitan in nature. These communication skills are recognized immediately by people who also possess them, and they contribute to the mobility of the people who possess them.
So, I'm not going to try to teach writing as much as I did before. I will save my literacy for myself. I will also try to speak in the manner of a third-grade teacher, and we'll see how that goes.