I'm curious about other clients - good to hear I'm not the only one, OP

I think I have always been curious, because I felt like it would give me some context and therefore some clues about how my T sees me. E.g. am I the one with the most difficult history? Or the one who keeps everything together compared to everyone else? Etc.

I have realised I am never going to get this information out of T! This is a good thing of course. He's scrupulous about protecting people's confidentiality. But he has asked me why I want to know, and we have discussed this. Basically there are a couple of things for me I think that were the questions underneath - did really bad things happen to me, worse than the kinds of things that happen to most people? And am I doing well, or badly now compared to other people? The second is a kind of competitive question which basically comes from the question, am I a bad person?
T thinks that no matter what I found out about other clients, it could be somehow twisted to show that I am bad or there is something wrong with me. So he thinks it wouldn't help me. (Even if he was prepared to tell, which he isn't.) Instead we focus on being able to believe that I'm not a bad person.