I was drinking wine with family meals way before age 12. Either this kid is a complete idiot, or the family is running a scam.
Back in days gone by, everybody, even kids drank beer or wine because drinking plain, untreated water could kill you. Most people drank a weaker version of the stuff during the day, and then full strength with their supper, or night cap.
Don’t overlook the possibility of both being true...