The hard and unexpected part is the realization not just that my son is not here but that the boy he was is gone forever. I would give anything to have them both back. But of course that cannot be. Life moves on. Kids grow up and move away, and if you don't know this already, believe me, it happens faster than you can imagine.
Bill Bryson, I'm a Stranger Here Myself: Notes on Returning to America after Twenty Years Away
children, time