I guess I'm one of those people able to form secure attachments. Actually, attachment is a bit of a non-issue in my therapy. Because it does not cause problems for me, it just never comes up at all.

I am able to trust people readily and healthily (able to discern realistically the few people I need to be wary of from the vast majority who are trustworthy). If someone messes up, I am able to keep things in proportion and not throw the proverbial baby out with the bath water. I have good instinct for others' space and boundaries as well as my own, so I can respect the other person's boundaries as completely about them rather than an affront to me.

Attachment just doesn't come up in my therapy, and therapy stays very much about me without getting complicated and mixed up in therapist/client attachment issues.

That's my experience anyway.