Pets can be a great emotional comfort and support for the people who own them. If it pleases their owners to call themselves Mummy or even Daddy who does it hurt?
We humans tend to play silly word games with those we love.
How many of us have daft, animal pet names for our partners? I, who pride myself on being down to earth, called my husband, in private of course, my, " wooly lamb,"
because, even at ninety, he had a mass of silver, curly hair.
OK, I know perfectly well that I am not a sheep, and I was definitely not his Mum. It was just a bit of fun!
Our animal companions are loved, and that's what's important.
Isn't that better than the abuse , neglect and terror that some sick humans inflict upon their ,"pets"?