1) gang bangers are criminals,
2) 21 year olds are not juveniles.
With that being said, I have had my fill of law enforcement duty and am well aware of those that shouldn't have a gun.
I will concede to you that banning a 3 year member is harsh and I HEARTILY agree that we should have compulsary military service (or for the pacifists, a peace corps) before being able to attend college or vote. I apologize to you for the misunderstanding.
And I apologize as well, not pertinent to the thread and I was off topic....
Regards..