My daughter called me “dad” the first few times we were out. Didn’t really bother me, but I told her maybe it would be better to just call me “April” when we are out in public. In private I don’t care. Whatever makes her happy and comfortable.
Of course I haven’t transitioned yet so perhaps I would feel differently if that time comes. I just don’t ever envision her calling me “mom” however. She’s 30 and I have never been her mom that entire time. I’ve always been her dad.