I am honestly surprised how many people are just taking this as ok..... Yes, in a non school setting, an 18 year old and 22 year old wouldn't be an issue, however as stated, in that particular instance, it is highly wrong. As an adult, looking at a (even if they are 18) child in school and thinking... "yeah it's cool for me to fuck them"... That is criminal. The excuse of "well you can't help what you like or love" is the reasoning that pedophiles and rapist use. As a fucking adult, looking at a kid and wanting to fuck them, ESPECIALLY if you're in a position of power is disgusting and deserves criminal punishment.
It's the reasoning
everyone uses to do stupid/illegal/immoral shit.
Just being clear, I'm not saying by any means it's right, I'm saying it's bound to happen because people think in a way of risk versus reward. Most crimes go unpunished and some people just crave the thrill of doing immoral shit. The only reason more 22 year old teachers aren't banging students is that there's only a set number of teachers and then from that set number of teachers only a set number of them are willing to have relationships with 18 year olds with no job who still live with their mom and dad.
In a large perspective, if every adult on the planet was a 22 year old teacher, banging 18 year old students would be so common they would probably change the rules to make that normal. Alot, I stress alot of people
would risk (they are adult 18 so no pedo charges/stigma and not even a teacher yet, so at worst can still change over to other career pursuits virtually unscathed) are not that high and life altering. There are people who do much much worse on a daily basis who either never get caught or get a slap on the wrist.
What she probably Wasn't anticipating though, was the national attention and that in the social media age this will follow her everywhere. However she's not a pedo so I'm not sure this will follow her like it did Mary K Lateurno who was in the prime of her career, much older than the student, married with children and the student was a minor.
This student teacher will probably still be able to obtain teaching certification and teach in another country with no problems. So when risk ~ is not really high enough to ruin lives then people will go for it. Sex and love are huge motivations that make people do all kinds of crazy things. Even with high stakes they go for it. This was relatively on the tamer side of scandal. In essence the only law broken was school policy.