Have a friend who is insisting that her (just turned) 1 year old DC signs please and thank you in the appropriate way - i.e. won't receive anything/food until he signs please. Surely it's too early for insisting on manners? Am I being lazy by not being bothered about it for ages (I have a 9 MO)? It just seems a bit odd to me. When did you teach your DC to 'say' please or thank you?