I think there's nothing old fashioned with you. I also think that good manners in public places/with other people are something that everybody should adopt.
Poor kid. I think parents' disinterest toward their children (lack of limits or whatever) will revenge itself to the child later. There are rules & codes in the world and society that you have to obey and I bet it's easier if your parents have demanded you and you've learnt some of them in your home when you were a kid. Even if I can't know what's the matter with that kid.