Who stayed?

How come some people stay, and some people leave. To me it seems inconcievable that you would during your whole life never even try to spend a few years in another town or city if you come from a really small town as I did. If you later on understood it was not for  you, I get it, we have different personalities. Yet, when I look back it seems to me that more stayed than moved. I have no contact with them any more, which is as strange as it is explainable. Seeing my hometown on TV was an interesting experience. I felt smug, I felt curious, I felt horror at the sight of a man running through the empty streets screaming "hello" emphasizing that this, is one shitty place. I had the same feeling watching the interviews, scrutinizing their accent, clothes and what they really said. What is it that makes so many hate their hometown so much that they feel such joy watching it get dragged in the mud. I looked up on twitter, to see what people said about it. There where two kinds commenting on the program, those who left and felt amusement in the unkind picture that was drawn on the TV-screen, and the other group where those who still lived in the town, but emphasized that they had nothing to do with these people.