Jersey's School’s "Call of Duty" war games warning

PARENTS are being warned not to let their children play a controversial new computer war game following research suggesting that it makes teenagers more aggressive.
Dave Sharrock, an assistant head teacher at De La Salle School, has written to parents to express his concerns about the impact of Call of Duty: Black Ops on their children’s behaviour and performance in class.
The over-18-rated game, which has made headlines around the world because of its very violent content, allows players to kill both soldiers and civilians, including children, at will in a very life-like set of scenarios. (from BBC)

So what do you think?

Would you allow your under 18 children to play this sort of game?

responsable mums and dads would not let thier children play these games, That is why it is "Cert 18" or is that a "waste of time"?????