Mass illiteracy

Are those who espouse the primacy of face to face communication really just hiding the fact that they are illiterate? I mean this in the sense that they are not very comfortable  expressing themselves in writing. Most people don't really have much experience of putting thoughts down "on paper". Not many people keep journals, letter writing isn't what it once was, and business documents are really a very small and undistinguished subset of what is possible with the written word!

Just wondering ...