Are you a parent? Are you confused by the ESRB rating system for video games? Do you understand the MPAA rating system for movies?
If you answered "Yes" to at least two of the above, then go here for my "ESRB Ratings For Parents" guide. It is a quick reference card that you can use to link the two rating systems as a guideline.
Ignorance of the rating system is no excuse. As a parent, it is your job to take responsibility for what your child plays or watches. If you don't parent your child, who is going to?