Reply To: wearing a yamulka in a professional setting

There is a Gemora that a youngele is coming to see, I think, Rav Yehudah, who asks him why he has no sudar on his head. He replies that he is not married, and R Yehudah turns away from him in disapproval… It seems, superficially, that expectations were for only married guys to wear the head-covering, but also stricter expectations on getting married, so it may be same at the end …
Of course, this is not a complete proof, as some interpret this as sudar being on top of a hat on top of kippah. Not sure if we have other similar cultural references