On the other hand, I feel like the obsession with childbearing (constant fear about birth rates, pressure on women to become mothers, etc.) to be a lot more creepy than someone having wholesome protective love for their pets.
I fully agree with you about the creepiness of software "children", but I can't really relate to the pet part. It's honestly weird to me when people just kind of think of their pets as like, non-human roommates or something, when there's clearly one entity that has a responsibility to care for the other one since they're dependent on them for food, water, and shelter.