Once you have a kid or get a dog or cat, you pretty much forfeit your right to privacy! They follow you around – up the stairs, down the hall, into the bathroom, back down the hall, and down the stairs. Hard to imagine you did anything on your own before you had a chaperon!
It is possible they think you may get lost and need an escort, or maybe they fear you won’t come back – it can be too much sometimes, and you just need to be alone. So, you shut the door and leave them on the other side! Ah Ha! You’ve done it, privacy at last. Well, at least until the kids learn to talk or open doors and the cat learns to knock!