Up until the age of about nine or ten I believed in the Tooth Fairy, Santa Claus and God. I was encouraged in this belief by those whom I trusted. Parents, relatives, teachers and the preachers.
By the time I was eleven I became dissuaded in my belief in Santa and the Tooth Fairy by those very same people. But nobody tried to dissuade me from my belief in God. In fact that belief was stressed to me. I must have faith..... or else.
But there isn't one pennyworth of difference between Santa, the Tooth Fairy or God(s). All are fables and if God is fable then so too is Jesus and Christianity.