Anyone, even someone born in 2007, should know how to use pen and paper. This is a basic component of being an educated person, not knowing how to do that is as shocking as being illiterate.

Sure. But why are they mailing letters? I remember being 18 myself (a looong time ago), and having a helpful adult shocked that nobody had ever taught me how to write a check. I think I've written a total of 8 in my whole life now?