Not having a classification means not wanting to have games of that stature. Not being allowed to sell unrated games is illegal. It's called a goddamn ban and its a messed up system (for anyone who gives a damn about the games)
We have never had an R rating, it's just never been implemented. Just because the government hasn't made one doesn't mean they are not making one because they don't want one. We have an R rating for movies, if the government was all censorship anti free speech like you all make it out to be, they wouldn't allow R rated movies.
There is currently a Government Discussion paper out on an R rating for video games and the government is requesting input from the public about it, if they simply didn't want R rated video games, they wouldn't be doing all of this lol.
I am sorry but most of you people outside of Australia have no idea whats going on.