Travis and Crystal Runion, leaders in our church and parents of six children, share their thoughts:
We think the heart issue behind crying when losing is training your kids to "rejoice when others rejoice." It is about thinking about others more than yourself (Philippians 2:3).
Sometimes, when some of our kids lose they may throw down the Wii remote (or some other form of anger) and that too must be dealt with. There, self control is the heart issue.
I think doing your best is very important, but wrapping all your hope in the game or sport is definitely not where we or our kids need to be. This must be seen and modeled in us parents first!