The concept of Fable is that you have one person that can essentially become anything, anyone--so all of those people in the bar are actually representations of the potential future/outlook/growth of the one guy.

There's a female option for this game as well, but video games are still largely advertised for a male audience, so if they wanted to make an ad for the woman's side, the ad would only feature women in it (all representations of possible outcomes/appearances/growth of the one female character).