Q&A: Many Mormons don't know their own doctrine until their mission trip, where they encounter informed Christians and discover the differences for the first time.

Mike explains that many Mormons genuinely don't know the content of their faith's deeper doctrines. Mission trips (typically around age 17-18) are often when young Mormons first encounter pushback from informed Christians and realize the extent of the doctrinal differences. Mike describes the typical scenario: two Mormon missionaries at someone's door, being told about their own theology, looking at each other in surprise.