My 7 year old asked why I say sorry to the dog when I step on her tail, and I had no answer
She looked at me at the kitchen table in Tulsa last Tuesday and said "but she doesn't know what sorry means, so who are you saying it to?" and now I can't stop wondering if I've been talking to myself my whole life.
The part about "who are you saying it to" is what gets me, because I read once that we talk to pets the way we talk to babies, mostly for ourselves. The words don't matter to them, it's the soft tone that calms everyone down, you and the dog both. So you're not talking to yourself, you're just saying it out loud so your own brain hears it.