C’mon. Cut the kid some slack. He said he was an Army brat and he’s obviously proud of his dad. So he doesn’t know the rank structure well or the little inside jokes like “working for a living”. It’s not like he’s being disrespectful.
I would cut the kid some slack, if he hadn’t claimed prior service. Ignorance of military jargon, rank, etc. is no big deal, but stolen valor is a very big deal.