I am trying to determine the extent of the Jewish requirement for men to cover their heads throughout the day (that is, other than while making a bracha). It is fairly clear that this is not a Biblical law. But does it reach the status of rabbinical law? Or is it "merely" a minhag?
If the latter, and if my family's minhag were not to wear a kippah, could I (if I were a man) skip it?
Related: Wearing a kippa at work