Exactly this, different clients value different things. You obviously do not have to have a formal education to hold a conversation, or even an intelligent one, but there are clients who appreciate academic success in a provider.
The men in Halifax do not know me, the point of giving information I am comfortable giving is that in turn clients can get a small idea of what I might be like, allowing them to consider whether we are a good fit or not. The vast majority of my bookings are 3hrs+ because clients want to spend time talking with me as they can see I am kind, caring and intelligent.
And I only do not show my face to not be harassed on the street, my mom knows what I do for work, I do not truly care what anyone else thinks of me. I think noting the languages I speak is more identifying than that I am in law school though.