A good teaching moment for your son. You should have told him that is how life is. You have to do your best, control what you can control, and just keep pushing forward. Dwelling on coulda, shoulda, woulda is a waste of time. This isn't a video game where you can go back and start over.
One of my sayings to my kids. Every day you get up and start making decisions....both good and bad...then live with the results the rest of your life.
