Parents support it because they want their child to be playing the appropriate games for them.
There are many companies that rate Video Games such as ESRB or PEGI, who choose what they think it should be.
There are many rating boards such as:
ESRB
PEGI
OFLC
GRB
CERO
VET
USK
DJCTQ
BBFC/ELSPA
ESRA
One can view PS3 video game ratings on GameFly or Game Informer. These two sites have every major game that ever existed. These sites have millions of reviews from users.
Hello 3
Video Game Vixens - 2005 is rated/received certificates of: USA:TV-14
One can read ratings and reviews on the War 2410 video game by the GameFAQs website. The GameFAQs website allows users to supply genuine, sometimes critical, reviews and ratings of games.
The Video Game Revolution - 2004 TV is rated/received certificates of: USA:TV-PG
No ... The media is full of lies
LEGO the Hobbit The Video Game - 2014 VG is rated/received certificates of: Singapore:G
Hell's Kitchen The Video Game - 2008 VG is rated/received certificates of: Australia:PG
Astro Boy The Video Game - 2009 VG is rated/received certificates of: Australia:PG USA:E10+
M and A are the video game ratings for Mature (17+) and Adults only (NC18)
The Shell Game - 2010 is rated/received certificates of: USA:PG (video rating)
Lego Pirates of the Caribbean The Video Game - 2011 VG is rated/received certificates of: USA:E10+