But first they have to have a damn good reason to take that oath. And they don't give such oaths to those outside their race lightly. And while ya they do have their district in the capitol. Most cities don't have a 'dwarven district' as much as they just have a few dwarves who realized 'hey, I can make good money in human lands because their craftsmanship sucks' Most dwarves still look down on humans as beneath them and unable to understand or comprehend anything of real importance like oaths and basic dwarven technology so they don't even bother trying. ya you get some dwarves who aren't pricks. And there definatly is a decent amount of them. But most are just as elitist as the elves really.