I grew up in Dulwich and I'm still here and will probably always remain here but it's a natural progression. People move on. Most of the people I grew up with around Dulwich moved out a long long time ago. There are still a few scattered around but people get married, settle down have kids etc etc and either move to the sticks or abroad. I love it here though so I'm not budging. I think you'll find that the people we would have called newbies ten years ago are the ones who are moving out. They're a transient lot. It's the natural order of progression for many.