Actually, I still do have a mother - she is mentally ill hence why taken from her - was forced to see her, and I hate that more (but that is a whole other thread), and will never refer to her to her face as mum or mummy....she revoked that role by doing what she did to become ill in the first place (again, a whole other thread) - she is Mother.
It is actually the worst feeling as a child not being able to use the name all my friends used, and yell for mummy. I had a couple of friends (sisters in fact) who had to use their parents names, they felt like me...hated it. I will concede they were forced to (as opposed to given the choice, as I assume you are with your DD), oh, and we were teenagers, who all hate their parents anyway
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Please don;t belittle my comment about being in care and using it tho - it is valid as I was using it in the context of not being able to use the wird I yearned for - mummy. I now have a wonderful MIL, who I call Mum (Mummy even when teasing)- and god how I love being able to use the word.
You have asked opinions - I have given one from my point of view - and yes, it has damaged me over time. Probably won;t for your DD - you have a whole different relationship.
Regardless, it won;t change your mind it you want to be referred to as Iamintwominds , But like Soupy said further down the thread - only my children have the privilege of calling me Mummy in that certain tone only they use - anyone in the world can call me Psycho. (oh, my real name is unusual - not yet met another - doesn;t change my mind on the Mummy thing).