As long as rating serves informational purpose, yes Kiya, it probably helps uninformed parents determine, what game/movie they are going to buy to their kids.
But, I totally agree with Kejero. It is parents, who raise their children, so they should stay involved, not to pass this to rating systems, teachers etc.
They should care and stay interested in - what is this boy doing every evening in his room?-
PS Kiya, glad to see you again <img src="/ubbthreads/images/graemlins/smile.gif" alt="" />
