Maybe the behaviour just simply reflects the era when we no longer recognise each other's humanity, where its not about mindfulness or meaning of the experience but simply its recording, the age where we have never been so connected yet so disconnected, the age of me; I mean lets deconstruct the world 'selfie' for a minute.  We do it to each other in the everydayness of life/living, why would we not expect it to show up in places like these as well.