While I understand your thought process, I do not believe that setting boundaries should be reserved for family and close friends. We have to respect and set boundaries with everyone we meet...busdriver....sales associate...neighbor...colleague etc.

Avoiding setting boundaries with some people out of fear that they may react negatively is problematic. And phrasing makes a difference. I did not suggest telling someone that they are annoying you. "I am weary of this topic though I appreciate you were trying to be helpful" sends a different message. And then you move on.

I am not trying to argue btw. I respect all viewpoints. Just sharing my thoughts.