What normal people go into bars for is to get a drink.
What roleplaying characters go into bars for is to pick up rumours from the strangely knowledgeable barkeep that are somehow miraculously related to the current adventure they are embarking on.
Or to meet each other at the beginning of the adventure.
Oh, and the barkeep says, "Sorry, we don't serve cheese here."
Transcript
Obi-Wan: No need to rush. There's no back door. She can't escape.
Anakin: How do you know that?
Obi-Wan: I go to this bar all the time.
R2-D2: {aside} Alcoholic again, huh?
Anakin: No windows?
Obi-Wan: Nope.
Anakin: Any good hiding spots?
Obi-Wan: There are three. But one is in the Hutt toilet.
{beat}
Anakin: Let's not go there.
Anakin: I'll look around.
Obi-Wan: I'll guard the door. And get a drink.
Barkeep: What'll it be?
Obi-Wan: Anything but schnapps. What's the word?
Barkeep: Well, there was a rumour you'd pay off your tab this year...