My son began attending a new school this month. As we pulled up to the front entrance, he was wondering aloud whom he would sit with at lunch. While he has a couple of friends who attend his new school, they have a different lunch schedule. He stepped out of the car—excited, hopeful, and a little apprehensive—and off he went. He’s entered that age when there’s no looking back after exiting. Gone are the days of that broad, beaming smile…