Not sure if it’s too late to chime in to be helpful but I’ll give you my experience and advice. I was not given much guidance by my program about alcohol other than to avoid it for the empty calories aspect.
As a Jew, wine is part of our holidays, rituals and celebrations so it’s hard to avoid. Yea, I could do juice but I don’t want to, I like wine and I’m an adult, damnit.
I had a small glass at home a week or so post op and noticed that it feels a little funny when it hits my stomach but that goes away quickly and I drink a lot less than I used to. I feel it sooner, but once I stop drinking the buzzed feeling goes away sooner too. So overall for me a pro. I drink 1-3 glasses a week (still much less than I did before) and do not binge cause I don’t want to get hammered in a hurry. If you’re going to drink at an event, I’d recommend trying it at home to see how you handle it. That way if you have a problem, you’re in a safe place.
I can’t speak to the dumping as although I drink sweet wine, I haven’t had an issue. I just treat it like any other liquid and don’t chug or take big sips. This way, one glass lasts a lot longer too. Another bonus in my opinion.
If your program specifically forbids it, I’d recommend following that recommendation just to save the hassle of having to tell them what you did lol. And I agree that if you chose not to drink then it shouldn’t be a problem. If you need to lol like you’re drinking you can always have the bartender mix up a cranberry and water cocktail or similar mixed drink minus the alcohol. If you chose to drink, you can nurse a glass of wine for an hour or more at a time and ask the bartender to pour you a weak cocktail, should you desire you a mixed drink. Bartenders are like hairdressers, they’re good at keeping secrets ?