I deal with a lot of different people in a given day, academics, trades people, sales people, students, parents, bankers, employees....you name it.
I do all of the context switching, or condescending, up or down because I long ago realized it was the most effective way to the job done. Most people can't or just suck at it.
End result? It's exhausting,I get incredibly sick of talking to people and start to feel incredibly alienated. It's like I have to speak a hundred different dialects of English to get through the day.