I don't know if it is actually 80% but it is waaaaaay up there
Yeah, I personally find that hard to believe. Are there any studies you could link to?
I'm not sure if there's even enough data available on pedophiles (versus child molesters, i.e. pedophiles who act on their attractions) to determine the potential causes, due to the societal stigmas attached to pedophilia. I can't imagine that too many of them are volunteering to participate in research projects, which makes me question whether or not the few studies that have been done are even accurate. And then there's the question of whether or not the studies themselves are likely to receive proper funding, and concerns about political and personal bias affecting the outcome.