This is an interesting ethical dilemma...
http://www.stuff.co.nz/dominion-post/news/2029668/Call-to-jail-parents-who-break-video-game-age-limits
I fail to see how locking up a parent and fining them $10,000 is going to benefit families!
It might set a good example, but the punishment could have WORSE effects on the child and the family than the supposed ill effects of a violent game.