There are some serious mental gymnastics going on this post.
This isn't a 19-year old marrying a 12 year-old in a country where that is normalized. The Netherlands is a Western country and (while more liberal than many) it is not okay to have sex with a twelve year old.
This also isn't a case where he was under the false impression that the girl was sixteen. While that initially was the case, he later discovered her age and still booked a plane ticket to go see her. That's about as premeditated as it gets with a lot of time for sober reflection.
Yes, people do dumb things while their brains aren't fully formed (and brains aren't fully formed by nineteen) and we should take that into account when punishing them. However, when a teenager acts this far outside social mores and legal boundaries, they still need to be held accountable.
This thread does raise two interesting points for me:
1) The athlete was punished for this offence. Should the privilege of attending the Olympics be solely based on athletic achievement or should previous immoral/criminal behaviour outside the sport be considered? Other athletes with criminal pasts have competed in the olympics before.
2) Discussions of sexual assault/rape always seem to leave people on two sides. On one side is a group who feel the perpetrator is an irredeemable monster. On the other side is a group who looks at what the perpetrator did and, if it doesn't fit with the classic description of a violent rape, feels that everyone is overreacting and it wasn't really all that wrong. This probably stems from the fact that we view sexual assault/rape as the most abhorrent thing that a person can do. Polls in the US show that about half of Americans view rape as worse than murder.
In recent years, more and more behaviours which used to be viewed as a "bad date" are being classified as sexual assault/rape. In some cases (e.g. colleges where any degree of intoxication leads to inability to consent) this classification is not even in keeping with legal standards. It's unsurprising that there is a strong backlash in these specific scenarios given the label of "rapist" still carries enormous weight.