lightbrite,
Someone does not need to be visibly drunk to be impaired and have brain damage from consuming alcohol… especially a teenage or young adult whose brain is still developing until mid-20’s.
I don’t think anyone in the medical field (at least that I’ve heard) worries about a bit of kiddush wine at a Shabbos meal. Regular consumption or binge drinking are the bigger concerns.
If you cannot understand that, then I feel sorry for those who look up to you as you serve them alcohol.
To whom is this comment addressed?