Anyone who can't understand the difference between fantasy and real life is ridiculous. It's exactly the same with any other NSFW, any other porn, people can be into the weirdest nastiest stuff but as long as they leave it in their heads or in their bedrooms, whatever, and it ain't hurting anyone (particularly important part) then in my books they should be left to get on with whatever it is that they like. There will be people who actively search it out and so long as they can find it and nobody else can see it without looking for it willingly it should be A-okay!
I judge nobody on their fetishes etc but it doesn't mean I wanna see it all up in my face haha. The aformentioned kid who takes his MLP stuff to school will soon learn that you have to keep yourself to yourself in that respect most of the time.
Ooh, on the side note, unless you believe in the Hyperdermic needle theory then it's correct to assume violent video games/films etc are never the sole cause of violent people. That theory basically states that mass media is direct and powerful and is injected into our brains, with us being powerless to resist the ideas it presents us with. So basically, if you see someone killing someone, you will wanna go out killing too. As we all know, the majority of people are smart enough to know the difference bwteen something fake like a game and something real! So, my point being, even if children are exposed to something it doesn't mean it will directly affect them. BUT, I still wouldnt want my kids, if I had them, to go running around with a free pass to pornsville. That's just inappropriate and so so wrong! Like buying call of duty for a 5 year old.