No, I'm not a gimmick. But coincidentally I'm a German too:D And I can say that some things doesn't add up. He picked lacrosse and rugby, which are supposedly sports for riches. And I can tell you rich Germans doesn't give a rats ass about this sports lol, unlike USA or England which is a prestigious thing to do.
It's a minor activity here, anynone who is interested plays which are very small.
If he told he studies not in Germany, might have worked. But he is currently attending nr. 1 uni in Germany?
German unis are basically for free, you just need to have good marks, not money to attend the best one's.
Rich Germans would study abroad like England or USA.