How many of you started some RPG campaign of any genre by meeting a group of people in an inn, bar, tavern, or Mos Eisley Cantina? Raise your hand, because you know we've all done it. How good was it? Yeah, it pretty much sucked. I don't think I've ever heard someone say, "And it was so awesome how we all started as characters who didn't know each other sitting around a table at a tavern when..."
Part of the reason this motif gets eye-rolls is because it's SO contrived with nothing supporting the players. Why would strangers be loyal to each other? Or if they knew each other, why didn't the motivation for the campaign arise from their shared experiences and history? Why are the characters suddenly risking their lives on a tip taken from one of the least reputable places in any town?
Another reason it usually stinks on ice is that the people in the tavern or inn are transient. They aren't staying in one place, even the barkeep and stereotypical barmaids are easily replaced. Hence, there's nothing for the players to ever really come back to for validation, help, or enrichment. The tavern little more than a springboard and then forgotten, at least in my experience and in all the anecdotes I've ever heard. It's sad how the tavern where the adventure began becomes so astonishingly unimportant to the action later on.
I would like to see someone take this tired, lifeless old trope and really make it good. I've played a few modules that tried (like Return to the Tomb of Horrors), but none did a very good job. I lament the tavern meeting for this: it is usually so unsatisfying that it leaves a blotch on the memories of those who have played using it, and I want people to have the best experience they can playing RPGs.
So, if you have some great tavern stories OR a theory on how to improve ye olde tavern campaign kickoff, I'd love to read about it in the comments! :)