Attended a conference hosted by Airbus in Toulouse last year, with delegates from airlines all over the world. Come lunch time, and this being in France, there was of course a nice white for the starter, a red for the main and something sweet for the dessert. 75% of the participants happily dived in, most of the US contingent looked on in amazement and asked for water.
I'm fine with a beer or two for lunch, don't mind sharing a bottle of wine either if we are 2 or 3. In fact, I couldn't imagine going out for a nice lunch in business hours and not have a drink to go with it; one is not an un-cultured barbarian!