Well, they are valid concerns that this media might be inappropriate for their children, and that it is easy for children to get illegitimate copies of games, so they think that would expose their child to violent things and increase agression, however a study I saw on The escapist actually showed an opposite trend, as the sale of violent games went up, major violent crimes committed by minors went down. ( I'll find the study later maybe, on a school comp with terrible connection and the site is blocked)