For the same reason people don't believe that aliens exist
We can draw an analogy between Santa and aliens.
- Although many people claim to have seen aliens, these people are treated as cranks or lunatics. Claiming to have seen an alien virtually guarantees you will be treated as mad.
Although many people claim to have seen aliens, these people are treated as cranks or lunatics. Claiming to have seen an alien virtually guarantees you will be treated as mad.
- Although there are apparently pictures of flying saucers, these pictures could be CGI, could have a natural explanation, or could perhaps be hoaxes.
Although there are apparently pictures of flying saucers, these pictures are always a bit blurry. They are most likely hoaxes, or if not, they must have some natural explanation, ball lightening or experimental aircraft.
- Although aliens apparently leave crop circles, these could easily have been placed by students under cover of darkness. Likewise that extra present under the tree was probably dropped off by Auntie Flora last week, wasn't it?
Although aliens apparently leave crop circles, these could easily have been placed by students under cover of darkness. Likewise that extra present under the tree was probably dropped off by Auntie Flora last week, wasn't it?
Moreover, admitting a belief in Santa would have serious social consequences. Anyone in possession of evidence supporting the Santa will most likely want to keep said evidence private for fear of scorn and derision.