But seriously, I don't think that in this case the porn is what makes the big difference between doing it and not doing it.
I agree with you that a relatively high % will probably actually do it, but I don't think porn is what causes this. I think that if anything, porn provides an alternative. Something better than just fantasizing, but still not the real thing.
Besides that, there is also the option of finding a girl that just looks young. Over here, sex with girls from age 16 is legal, and finding a girl that is barely legal and looks young for her age seems like a real-life alternative that still isn't abuse.
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