One unique aspect of Korea is the degree to which government sees it as its job (often in a positive sense) to change culture and habits so as to create a more cultured, civilized, society. The most striking effort over the last two years is the push to get Koreans to line up to get on trains and to walk up and down staircases on the right side. The process has had considerable impact on Korea where people did not line up, or walk on the right side, previously.
