I was curious about the same thing... I finally decided that kids could call me whatever they wanted as long as it wasnt rude
. I have had kids who called my MIL (who lives next door) mom, simply because everyone else does too. I dont think kids will call you mom or dad if there are no are no other kids in the house, but I found they often prefer to call you some version of your name. Then again maybe that only applies to me since my name can be hard for kids to pronounce properly.