My oldest was a soccer player. I am not a particular fan of the game (unlike baseball, which I have loved since I was a kid), but I sure do miss seeing her play. She gave it up after HS, having decided she just didn't want to risk another orthopedic surgery. It was the right decision for her, no question. But she had played since she was four years old... If you have a child who is at least a moderately serious athlete, then sports is likely one of the main things you and your kids spend time doing together (driving to practices and games, traveling to weekend tournaments, maybe coaching their teams when they are young, etc.). I think it's only natural to miss that.