Yea, someone has a point on this. Because, even in college, most university professors, actually over time get irritated at being called "Dr. So & So" after a while. Deep down inside, I noticed after you knew after your freshmen, sophomore, Jr, Senior year etc and if started doing research with them, they would actually let you call them by first name.
One time I came by my Biology professors office ( on a Saturday ) to get a note, and we started talking; he pulled open a drawer full of a six-pack full of beers !! pulled on off and threw it off and said, "Call me Stan." He said, "Heck, I used to work for a living as carpenter, before I got into this gig for a living!"
One of the other grad students came in, and said where's mine? He said, put one of those cooler sleeve over it so a busy body don't ask questions,,, how's that research coming along?
He was one of the more cool one's.
But, yea, Jill Biden needs to drop the Doctor Crap. Only, if you a real doctor, or some kind of serious, serious, research specialist or you know something that super-sticks out!
I wouldn't if it were me, why draw attention to yourself for ?