It depends what you wear instead of a “black hat”. If you wear nothing on your head, for a male, that suggests you are not part of the frum community or at least don’t want to be seen as being frum (of course some men have been known to wear wigs to pass as goyim).
However one’s hat sends messages to people about who you want to be seen as. If this subject interests you, and you have no interest in employability, study sociology in college.