Teacher jailed for sex with pupil

I'm generally annoyed at this news item. I don't think it's awesome that a teacher would sleep with her student. It's stupid and not exactly professional. But when, by the student's own account, the relationship was fully consensual and instigated by the student herself, I think it's ridiculous that this teacher is going to end up on the sex offender registry. I mean seriously, WTF. That's not a sex offender. And the fact that the girl was a minor is - in this particular case - of almost no relevance to me. The line between minor and adult has been randomly drawn at 18, and I understand there is a need for a line and in some cases I fully support treating minors differently from adults (I'm thinking crime and justice particularly) but for sexuality the lines are possibly even more blurry than with anything else and this entire story is kind of a really stupid example of that. And it takes away from looking at relationships that are much more problematic. Ugh.

Also how fucking irrelevant is that line: Police found several sex toys during a search of Goddard's home after her arrest.
Um yeah, so what? Why even report this? What does this bring to our understanding of the case? It's one line, unrelated to what was said before, and what is said after. I hate that. The least they could do is explain WTF they're bringing this up. What link are we supposed to establish on our own? That it's just one more proof that this is clearly a scary dangerous sexual deviant we're dealing with here?