Over half of UK parents aren't concerned with their children playing 18+ titles, a recent survey found. ChildCare.co.uk received more than 2,000 responses from parents regarding their approach to child supervision and games rated 18+ by PEGI (Pan European Game Information). 86% of those surveyed admitted they don't pay any attention to game rating systems of their children's games.

This is in stark contrast to the 77% of parents who said they follow age restrictions before allowing their child to see a film. Unlike games, the British Board of Film Classification's ratings are enforced by law even when accompanied by an adult. Theaters caught allowing children in a 15 or 18 rated film risk losing their license.

Though 86% of parents doubted the long term effects of 18+ games on their children, 43% stated they witnessed increased negative behavior as a result of playing adult games. Another 22% reported "negative or offensive language" they believe to have come from games. Nearly half of all parents expressed concern over video game addiction.

Evidence linking childhood aggression and it's long term effects have been inconclusive. A 2011 study linked aggression associated with video games to be caused by difficulty and frustration rather than violent content. However, the American Psychological Association has since warned that video games could lead to increase aggression sensitivity. Though the APA has cited violent games as just one of many contributing factors with no individual cause.