I understand what you're saying about teenagers consenting to sex. However, it still doesn't make it okay for a supposedly grown up man or woman of 25 or 30 to have sex with a teenager. My problem with it is and will always be that a 15 year old consenting to sex with 30 year old is not the same as a couple of teenagers consenting to have sex. If it ever happens with my child, heads will roll. Bet on it.
Oh, at the very least a relationship between a 30yo and a 15yo is very, VERY squicky. There's often a power imbalance going on there, if nothing worse. It's just typically not nearly as damaging as actual child abuse. I've known some people who had that kind of relationship with an older person as an older teen or much younger adult. But that's how they tend to view it later on, I think: as a relationship they had at one point that was perhaps not healthy but that they did participate in willingly and from which they gained some benefit.
On Thanksgiving one of our high school teachers was arrested for sexual battery of a minor. (She is 27) I fully agree Sundrop, it is never OK for an adult to take advantage of a teenager. It is completely predatory!! I hope this teacher gets the book thrown at her.
I would say in the case of a teacher, DEFINITELY that's crossing a line. It's not even considered ethical for that to happen with adults. Teachers shouldn't date students, doctors/therapists shouldn't date patients, etc. Even worse when it's adult/minor, regardless of age of consent.
4. An accusation is not proof of anything. If he did the crime, then he should do the time, but it's a shame that all you have to do to ruin someone's career is make a claim of sexual abuse.
And the accusation will NEVER go away. Even if recanted. Legally, a person must be proven guilty. But, publicly, even if he is proven innocent (which is darn near impossible to PROVE) his career is over. There will always be some people that will say it's a cover-up.