Today, for the first time in five years, I was in the line of cars snaking their way onto a school campus with a child beside me holding tight to a bulging backpack, ready to open the car door and step out into a new adventure. I pulled up to the curb, smiled into the sea blue eyes of my son, and watched him open the door and go on his way. Then I drove on out of the parking lot, down the road, and back home, wiping a few tears as I went.