That's what really scary about this

Is evidence ever needed? Outside of the testimony of the victim, not that that can really be called evidence. And it's not constrained to children either - I've come across a lot of new stories about men who were later exonerated of raping women, after spending a lot of time in prison. Where the women came out later and admitted they made everything up. I'm not sure if I would feel comfortable alone with a woman, at least if I was in a position of power above them like their boss or teacher etc., without a recording device on.