Jonathan Haidt’s important book The Anxious Generation demonstrates that smartphones and social media multiply anxiety. This is particularly true for adolescents. He’s right. Yet the problem of anxiety is not new. Tolstoy in the 19th century said, “Our whole life is taken up with anxiety for personal security, with preparations for living, so that we really never live at all.”

Election years exacerbate anxiety. But anxiety haunts the human experience. A little 4 year old spent Tuesday morning crying through morning prayer on the first day of school, right over there. Perhaps the mother was also weeping. Letting go of your child, whether for JK or her freshman year out of state, is fraught with worry....