"Well... it's different the other way around because people expect you to call your parents Mom and Dad but they don't expect your parents to call you Daughter. So if you're not calling them Mom and Dad, people will feel like there must be some reason you don't do that, and if they don't ask you, the easiest thing to assume is that you're not calling them that because you don't want to call them that - because you don't want to relate them to you that way."