Have you discussed your personal boundaries in therapy?

Many of my therapists have brought up their own boundaries in therapy; office hours, contact outside of session, etc. But it wasn’t until after a very bad therapy experience that the subsequent therapist talked to me about setting my own personal boundaries.

I have been wondering why my previous therapists never brought up this issue?
I’m a long-standing ‘people-pleaser’ ...even to my detriment...so there has been no lacking of material.

I wish any of my previous therapists had talked about my boundaries sooner and am curious about how often other client’s therapists brought up client boundaries in therapy?