What are pets for? What are things that pet owners do that seem borderline offensive to you?

It seems to me that pets used to be for humans to do with as we wished. Now, based on what I see on other questions, it seems like it’s the other way around. Pets are there for humans to coddle and treat like animal royalty.

What do you think pets are for? As a way of quantifying this, what kinds of things have you seen pet owners do that bother you, but you think might not bother others.