Social media is a minefield, but I would just like to speak to this one sentence. I saw the original interview and I saw Nathan's apology. I believe Nathan apologized because he realized he misspoke and hurt some people with the way he misspoke. So if you are using the term "had to" in that Nathan realized he had hurt people and had to apologize, you are right. If you are using the term to say Nathan was somehow forced to apologize by social media reaction but didn't really mean it, that is not the case. I don't want to revisit the particulars, but I will say Nathan's genuine and heartfelt apology made me respect him even more.
And there is no such thing as a typical college experience.

I remember an interview with Nathan (perhaps his more dedicated fans can link) where he said, well, yeah, I may be doing well in figure skating, but someone else in my college just won an Oscar. (College is Yale speak for dorm, very simplified). So that's "typical" for Nathan.
Particularly if Nathan reaches his Olympic goals, I just can't see him returning to full time competitive skating. Will he say definitively I'm hanging up my skates? I doubt it. But he has seen life after competitive skating, and he appears to be ready for it. Frankly, that approach impresses the heck out of me.