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.
"Ei oo, ei tuu, ei heru, eikä tipu
Tämä elo on kuin kivinen perunamaa
Ei oo, ei tuu, ei heru, eikä tipu
Sieltä ituisia perunoita aina vaan saan"
Stig - Perunamaa