Children do the same thing intuitively: parents continually complain that their children don't listen to them. But as soon as someone else tells them to "cover their nose", "chew with their mouth closed", "don't run with scissors", whatever, they listen and integrate that guidance into their behavior. What's harder to observe is all the external guidance they get that they don't integrate until their parents tell them. It's internal vs external validation.

Or in many cases they go over to their grandparents house and they let them run wild and all of the sudden your parents have “McDonald’s money” for their grandkids when they never had it for you.