Mr. Bean is at his best when he is not using words but I am equally at home in both verbal and nonverbal expression.
Habitual texters may not only cheat their existing relationships they can also limit their ability to form future ones since they don't get to practice the art of interpreting nonverbal visual cues.
Mild autism can give you a genius like Einstein. If you have severe autism you could remain nonverbal. You don't want people to be on the severe end of the spectrum. But if you got rid of all the autism genetics you wouldn't have science or art. All you would have is a bunch of social 'yak yaks.'