how they should interact with peers, teachers, and other adults; how they should perceive different races, groups, or classes of people; or what ideas and behaviors are considered acceptable or unacceptable.
It is mostly common sense that takes place of this. How to perceive people and what is right and wrong, but I also feel that what should be taught is common courtesy. If someone was not taught it properly, they wouldn't know how to act like common folks. Branching out to explore your own perceptions and biases is fine, but you can't do that without knowing the basics. Back at home, I did not know some basic common courtesies because of being raised by Asian parents and it would come off as being rude. I had to figure it out by myself but it wasn't easy. It would have been better if I was taught it.