The Republic by Plato Part 4 Page 19

Thus educated, they will invent for themselves any lesser rules which their predecessors have altogether neglected.

What do you mean?

I mean such things as these: — when the young are to be silent before their elders; how they are to show respect to them by standing and making them sit; what honour is due to parents; what garments or shoes are to be worn; the mode of dressing the hair; deportment and manners in general. You would agree with me?

Yes.

But there is, I think, small wisdom in legislating about such matters, — I doubt if it is ever done; nor are any precise written enactments about them likely to be lasting.

Impossible.