I have always been interested in the psychology of this phenomenon--many people going "ga-ga" over celebrities, wanting selfies, invading their private space, etc..

I apparently lack that gene and tend to look upon actors/entertainers talented people doing a job they love... like many other people in other fields.  I would never think of interrupting their coffee or fish and chips just to be able to say I "met" them or talked with them.  But, whatever floats your boat, I guess.