I prefer living to not having lived. I would expect the same of most people who aren't struggling for the necessities of life. About the only seriously negative

I prefer living to not having lived. I would expect the same of most people who aren't struggling for the necessities of life. About the only seriously negative thing about it in my experience is contemplating it eventually ending. And animals don't have that, as far as I know. So I'd think an animal life largely free of pain or suffering would be a net good.