This is good upbringing, and has no unique connection to any culture, ethnicity, race, nation, or group. There are good and bad in all. Where I come from, in the rural American midwest, it's like you wrote above, and consistently enforced throughout my youth. But that doesn't mean there are not idiots from where I grew up or where you did. I think Taekwondo is good upbringing, but I agree completely with what you've said before that the choice of master is a vital one. You've commented often about the high quality of your seniors. I wonder if the master of the student accused of assault is surprised by what happened...whether he knew of his student's issues.