In my job, I run a lot of functions. Anything from graduations to fundraisers to award ceremonies to weddings. And at almost every one, someone makes a comment or complaint about the drinks being served. And I can't fathom this.
If you're attending an event like this, the drinks are usually supplied by either a sponsor or the organizers of the event. And they're free. As in, you don't have to pay for them. Okay, in some cases maybe the ticket price you pay includes the cost of the drink, but you're not coming for the wine.
It seems to me, that when something is being provided free of charge, you should be grateful for it. Accept whatever it is graciously. And if it isn't what you like, well, there's a bar just a few steps away where you can purchase whatever you feel like drinking. Don't like bubbly wine? That's fine. There's juice as well. Want something alcoholic? Well, go to the bar and get that red wine you want.
Do you ever complain about the free stuff at events?