If you are referrign to XC nationals, participation is often compulsory or near-compulsory (major financial swing for running vs. not running) for runenrs who are under contract to any one of several athletic gear manufacturers.
There are also 2 purposes for the race -- US championship and World XC qualifier.
Suggesting that he HAS to follow on to Worlds if he is disinclined to do so is unpatriotic? That seems counter to the kind of US that patriots are supposed to love -- the US's first document, that formally declared it to be an independent nation, indicates that "life, LIBERTY, and the pursuit of happiness" are inalienable rights endowed by
their Creator, not by the LetsRun.com message board.