llamuphobia:

So I’ve noticed that pearl tends to do this a lot with garnet, which I had thought about, but didn’t pay any mind to.

With the episode Back to the Barn, it was revealed that Pearls are mass produced “accesories” whose only purpose is to look pretty (and whatever their master may want idk).

So I’m thinking this is a leftover habit from when she did serve the purpose of a Pearl.