This recent article seems relevant: http://www.cnn.com/2015/08/03/opinions/lee-immigration-ethnic-capital/
One factor may be that Asian cultures place a huge emphasis on formal education. Formal education is seen as the path to success in life. Doing well in school and in "acceptable" hobbies (eg. music instruments, traditional art etc.) are considered paramount, even at the expense of other childhood/teenage developments. Asian parents are really picky and demanding about the education their kids are getting and are often very involved. Also, all that time spent studying and going to tutoring to get into college means less time for kids to get into trouble. Of course, this means not going to college is pretty much a sin certain Asian families.
One factor may be that Asian cultures place a huge emphasis on formal education. Formal education is seen as the path to success in life. Doing well in school and in "acceptable" hobbies (eg. music instruments, traditional art etc.) are considered paramount, even at the expense of other childhood/teenage developments. Asian parents are really picky and demanding about the education their kids are getting and are often very involved. Also, all that time spent studying and going to tutoring to get into college means less time for kids to get into trouble. Of course, this means not going to college is pretty much a sin certain Asian families.