What's the source of the authority that parents commonly have over their children? For example, sayings like "My house, my rules" suggest that children and parents have a kind of agreement: in exchange for the food and shelter which their parents provide, children agree to follow orders. However, I'd guess that most people wouldn't really want to endorse this kind of justification. What then?

But normally we do regard ourselves as liable to respect the rules of whoever is offering us hospitality. This is not absolute of course, and children might see themselves as in a different position. They did not after all ask to be born, although after being born it is no doubt convenient for them to have somewhere to live and someone to provide for their food and general supplies. Once they have reached an age where they can make their own decisions about where they are to live we can ask them to accord with the policies of the care provider, or else.

Not that such a request is likely in most cases to be met by anything other than contempt, but it is always worth trying, I suppose.

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