I'm not much of a drinker myself but if ever there's a social situation calling for it in the country I'm visiting, why not? I mean, I do love getting to know the locals and being able to see them live their everyday lives. I like eating the same food that they do and even drinking the same water that they do.
The same goes for drinking, although I'm not a fan of alcohol, I make it a point to at least try a local alcoholic drink in each country I visit. I even tried out local alcoholic drinks in certain areas of my country. So I wouldn't think twice about trying out other countries' alcoholic drinks in special events or festivities.
I think that experiencing the culture and traditions of the people, the locals, is one more aspect of travelling. It adds up to that authentic experience and it's something you can cherish for the rest of your life. If I only get to visit a country once, I'd surely try out everything that that country has to offer, from exotic foods to local alcoholic beverages.
But if it's simply drinking to get drunk and more so if we're just drinking international brands of alcohol, I'd be apprehensive. I'd still drink a little but just out of respect.