I would remind him that I am under twenty-one and am thus not permitted to consume alcohol by state and federal laws. HAVE A TASTE OF THINE OWN MEDICINE, GOODY TWO-SHOES, LAW-ABIDING MEDDLERS!
Aha! But THIS hero is a lovable antihero who has been drinking since he was 16, reasoning that it's the legal age in Germany and it should be the legal age here in the US! I...don't know how it'll help him defeat your deathbots, though.