A lot of Westerners I know balk at the way Korean high schools regulate all kinds of things in their students’ lives — hairstyle and coloring, an absence of piercings, and so on are all required at most high schools. Kids with hair that is too long risk having their hair cut on the spot by some teachers, and even corporal punishment. That’s right, a boy can get a whupping, because his hair is too long. A girl can if she’s suspected of dyeing it. (Heaven help those who are born with brown hair.) But what kills me is when …