They're still considered Olympic eligibles, so there's never an issue whether they're going to turn pro or not. When they get to that level, money is never an issue. They make so much money now.
To become an American citizen, we require people to read, write and speak in English. That is to help them to assimilate in our melting pot, truly to become Americans. We mock that when the cherished right to vote does not involve English any more.