<p>Are you asking about domestic Asian students or international students? If you are asking about international Asian students, it’s because the college admissions process in China and Korea are still very Draconian - if you don’t test high in the national exams, you have no chance of getting into the most pretigious universities and degrees from lesser universities have less cache than an American university diploma. Korean parents who can afford it, will opt out of the high stakes Korean system and send their children to the US where there are more options. When you tour those campuses, you’ll have no idea which of those students are domestic and which are international.</p>