Why I am not a vegan

[anagogy]

The quote is about the various methods of investiture, not just pets. Also, farm animals are domesticated and therefore interact with humans every day, just like pets. They may not be invested with love but they are invested with 3D awareness.

I'll concede that it involves more than pets, but I seriously doubt it happens to any significant extent in large groupings of animals (like on a farm). In my opinion, it is when humans name an animal, and/or shower it with affection that starts to individuate it -- i.e. the singling it out as a personality unto its own.