Interesting thing about Chad's pie chart - most all of the smallest religious sects (Jews, Buddists, Chinese traditional, African/primarl traditional) have all been persecuted to the point of nearly extinction at many points in history, including modern times. Some of that persecution has been at the hands of secular leaders (example - the Chinese oppression of the Dhali Lama and many other religions they perceive as a threat to power) but others have been persecuted or "missionaried" out of existence (see every Catholic or Protestant missionary in Africa or South America).
Christians get put in between a rock and a hard place. Have a deep conviction that yours is the One True Religion and go out and prosetlyize and convert the heathens, and be seen by others as arrogant and intolerant and self-righteous. Or stay home, worry about your own relationship with God before you get all conversion happy on the ignorant natives in Bungobungo, and risk failing to follow the basic premise of Jesus's message - Go forth and teach others that man may only come to the Father through me.
My own choice is more like the last. My main job is to worry about my own soul. My other job is to take my kids to church and Sunday School where they can learn the tenets of my faith and the basic morals and values that our society adheres to for the most part (I don't care what you are - The Ten Commandments are pretty simplistic and basic and would apply to any religion). I give my kids the foundation during the time they are young and impressionable, and then hope that they will continue in that path when they get older. The basic foundation is the same for all so I don't call it indoctrination - I would not be upset if they chose one day to belong to some other congregation - but I don't think my 6 year old is at a point now where she can choose to be one versus the other for a rational reason. Her father and I are Methodist so she goes to a Methodist church. Period.
"Train up a child in the way he should go, and when he is old he will not depart from it." I don't interpret that to mean "Train up a child as a Methodist/Baptist/Catholic/Presbyterian" but rather to teach them the way to go to be a moral person with values and good character.
Bottom line, I believe in the Message, not the earthly messenger.