Periphery

It is inevitable to think that, in a single city, there are many different types of people and each one with something that differentiates them from the rest. And, if you have never noticed, the only thing you have to do to appreciate this greate variety is to go outside. Everyone is different from the rest, whether due to their beliefs, customs, nationality, education... but why are there so many prejudices about the people who live on the outskirts of big cities? Are they different only because of the location of their homes? Are they worse people than those who live in the city center? Do they deserve to be prejudged without fist having met them or walked through their neighborhoods?