This is ridiculous. Out-of-touch folks trying to control something they don’t (no longer?) participate in or understand. Dogs in the manger.
Understanding and resolving this is where these characters’ energies should be directed.
But of course it’s easier to fantasise about teaching “your flock” to wine cleanly, or not to wine at all (either way you get to fantasise about wining, which is probably the point of the exercise), than to deal with an issue so deep-rooted that will take more than a five-year term to figure out.