My mother told me when I was around the age of 8 that I needed to stop calling her mommy and start calling her mom. She was a mean person, physically and mentally abusive. There are lots of things I remember her saying and doing to me that really hurt my feelings but that is one memory that will always be fresh in my mind.
I love being called mommy. :). Warms my heart. I would never tell my child to stop calling me mommy.