My son is after me all the time, he's 14, to get this game. I absolutely forbid it. I have never played it myself, but have read stuff like what you wrote above - and I will go back to this post if I ever have any doubts.

My son insists he has friends who play it that are his age.

I am not entirely convinced it is appropriate for adults either.
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We are what we repeatedly do - Aristotle