I don't usually care about anything personal about the therapist. They usually tell me more about themselves than I care about or have reason for knowing. Both that I see have said they were married and have mentioned children (both are around 70 years old and have adult children). Usually when they tell me something I wonder what on earth it has to do with me and why I go and pay them.
I don't see their real life as having much bearing on what I use them for as therapists. For example, I don't care if they drink or not as long as they are not drunk when I am at the appointment. Basically I expect them to act in an appropriately detached and distant fashion and stay back from me while I am there. Other than that I don't care what they do.