Hmm, if you mean inviting two people you think might like each other to the same activity, yes. If you mean actually making them sit by each other or otherwise make them interact, and holy shit, leaving the two alone to make them interact... Yeah, some people do that, but I've always hated it with a vengeance. I can approach and hit on people by myself, thanks xD

Yeah, it's only when you try to explain cultural things that you realize how complicated they are.