I learned a lot of life lessons from playing, it really helped shape who I am because of the great mentors I had.
I never had a concussion. I was lucky. If you follow and do your due diligence I think the mental trauma issues can be mitigated. While there are a lot of issues (I'm related to Kyle Turley, I know all about it) I think it's exaggerated by the media quite a bit. One concussion will not cripple you mentally.