One parent took offense to their child calling me mama too. I couldn't help it, they hear my own kids call me that. i have NEVER referred to myself as mama to them. always by my name. Sorry to say but i thought it was silly that her child calling me mama made her upset. It's not like i am the new mom and you are no longer mom. I thought it was a huge compliment. If the kids are calling you mama, then that means they love you as much as their mom!