Why do the asian student go to the western university?

They go to usa, canada, england, german which is actually give them a harder time to learn new culture and language. Don't forget the cost for all of that. Maybe because they got a "little" better education in the west but its not that the education in asia university are far below them. Is it because they want to graduate from top university that have a good name in order to make sure they get a good job in the future or they just like to go to the more modern culture in the west? or........... they just want to have a sex with white people...lol