Interesting topic and thread! I just would like to add something that always comes to my mind whenever I think about boundaries... my own. I think that I have quite good and healthy boundaries when I am mentally in an okay place, but when it's not the case, I sometimes fluctuate between extremes with it, too loose with select people close to me and too strong with the rest of the world. Either too open (less frequently) or overly guarded/inaccessible (more often). So I like to remind myself of something that's important for me: there is a distinction between good boundaries and building walls. Balance is key as in most things, and I like when a therapist has a similarly keen sense of this and individually tailored strategies.