17% of parents put no limits on the amount of time their children play
video games.

Most parents, approximately 83%, limit video game time for their children,
according to 2010 findings from the Entertain Software Rating Board (ESRB).
Video games were found to be more likely to have parental time limits than
internet or television usage. Although most parents surveyed limit video
game time, this does not mean they necessarily consider the activity in a
negative manner: 64% of parents say they believe that video games are a
positive part of their children’s lives. Children under 18 only comprise
less than one-quarter of all video game users—the average video game
player is thought to be approximately 34 years old.