It's a social construct like any, a partition or compartmentalization we put up to allow us to behave certain ways. Some cultures have different outlooks, some

It's a social construct like any, a partition or compartmentalization we put up to allow us to behave certain ways. Some cultures have different outlooks, some individuals have different outlooks. I think the only logic to glean here, is that we're able to get more resources out of a cow, so it was useful for us to compartmentalize and abstract away farming them as different somehow, so we did.