I've been a proud player of Dungeons and Dragons and other tabletop role playing games since 1990, and I insist to doubters that running a communal storytelling game like this is good for all sorts of real-world skills, from conflict management to brainstorming to improvisation and more. It's also good for—surprise!—story telling:
As a storyteller of any kind, the way you weave your narrative determines whether people stay engaged. The classic role-playing game Dungeons & Dragons can teach you how to construct strong stories and how to collaborate with others in a way that’s fun.
There are a few links to other stories in that article, too. They delve deeper into both the phenomenon of the Dungeons and Dragons product and the benefits of storytelling.