From a scientific and not legal or political point of  view, the male brain is not mature enough for full decision making until about 22. For girls it is slightly earlier, except in this lady's brain it obviously didn't mature. In any case, scientifically and psychologically speaking, no 16 year old can really consent because their brains simply lack the same decision making capacity as an adult. I work with young adults, at risk youth, and have a science and psychology degree,  I have seen the negative impacts of adult women preying on teenagers, it happens frequently and is often underreported in our society, and these youth have serious issues later because the relationship with a cougar is often an abusive and controlling one. I see the after effects, and it is anything but arbitrary. Maybe you should go volunteer with some of these young boys and men that were abused by an older woman before making such a statement out of ignorance.