I'm not that interested in acquiring further knowledge of villains but it actually is a good thing to teach children not to commit a crime. In the real world (as opposed to the sports world) it isn't so easy to get out of jail and find gainful employment. Go apply for a job and tell them you have a felony on your record and see how fast they hire you.
In the real world guys go to prison and come out and get a $1.9 million dollar contract because someone thinks they can play professional football. If you're scared, don't take your dog to the game and don't sit in the dawg pound in Cleveland.
Tell your kids that the bad man went to prison and now that he's out he has sought and obtained gainful employment. Tell him that someone was reasonable and kind enough to let him have a second chance. That's called redemption and christian charity. Tell your child you have the right to diagree and not buy tickets.
If you're the manager of PetSmart don't hire him. Now stop making inane comments to people on the internet about what the real world is like..