"Why do so many today want to wander off to South Africa or K..." — Scot McKnight quote meaning

Why do so many today want to wander off to South Africa or Kenya or India or Russia or Honduras or Costa Rica or Peru to help with justice issues but not spend the same effort in their own neighborhood or community or state? Why do young suburbanites, say in Chicago, want to go to Kentucky or Tennessee to help people but not want to spend that same time to go to the inner city in their own area to help with justice issues? I asked this question to a mature student in my office one day, and he thought he had a partial explanation: 'Because my generation is searching for experiences, and the more exotic and extreme the better. Going down the street to help at a food shelter is good and it is just and some of us are doing that, but it's not an experience. We want experiences.