This is so funny. I remember before my grandson was born, thinking the same thing. What I wanted or not wanted to be called. My mom was Memere to my kids. I didn't want to be Memere. I thought Grammy & Grampy would be nice. My grandson calls me Mema/Mima (whichever way it's spelled) and my husband Grampy. Someone told me they'll call you whatever they want or can say.