Limit to Kibud Av?
Question
At what age is a child not required to listen to his parents? For example, if man wants his son to wear a certain kind of kippah, and the son wants to wear a different type, at what age is he allowed to do so without violating mitzvat kibbud av? Specifically, if the man has said, I do not allow you to wear this-and-this type of kippah. Furthermore, if the child is approaching the age where he would soon start dating and makes the claim that he wants to wear that type of kippah because he will do that once he is out of his parents' home and he does not feel it is fair to "shock his wife" or "make her think that he is one type of person when he really is not." B'kitzur, this is the situation and the first question is the main one - is the son allowed, at age 20, to disregard his father's wish/command for the above reason? Thank you very much.