Something a little more trouble some to me is - if say the us does adopt a system similar to Australia? Censor games to fit within a rating determined by them (the government) - what does that mean to the development of technology in respect to the game play, art, and design?
It's a slippery slope here, and this is all just speculation - but if you were making a game that you knew would be above the rating of whatever the 'limit' was - to a large part of your targeted regional market - why would you even bother making it (above that rating)?! if its just going to be censored - your wasting a lot of man hours, time and money to produce something a lot of people will never see/experience. especially if thats a main feature of the game.
Look at MGS 5 trailers. Raiden slicing through shit looks pretty sweet! I can only (obviously) say that I'm pretty sure that feature isn't made to only slice some watermelons [then pull out the tea set and have some tea and mellons with all raidens little friends].
I consider that a pretty neat new feature of its game play. And the things that could possibly span off of that and take it further (other games made by other developers in the future), only to evolve to an even better new feature (maybe in some other way) are potentiating what drives the technological evolution of games.
what I'm trying to say is those possibilities wouldn't have existed - and that 'adult only' feature could have been a large stepping stone to something even greater that would have otherwise never existed.
Violent kids play violent games.
because bad parenting/environment made them violent in the first place.
It's just another excuse for parents to feel like its not there fault there kids are bad behaved and out of control.
...anyways.... umm yah .... I think I'm done ranting....