This morning, I was exchanging emails with my dad about concussions in football, and he wanted to remind me that he never let me play football.  True, I wasn’t allowed to play football as a kid.  And my dad wasn’t allowed to play football either.  And he wanted to make sure that, one day, I kept the tradition alive. Well, honestly, I’m not sure if I will or will not let my son play football.  I know that I won’t let my son play football before the age of 14.  The research shows that under 14, kids brains are still developing and their necks aren’t strong enough to support their oversized head.  But when it comes to beyond 14, I might just let my…