Ok, the thing about not being able to go inside a district unless you reach the proper level is clearly bullshit. I mean, she stated two pages later that there are clients passing through the town, so people CAN and DO go to higher districts (how could Urara make their jobs otherwise?)
There should be also people WORKING in the higher districts: who provides for trash collection and cleans the streets? For some reasons I don't think it is the first Ura...