According to a Swiss study, cited by Rev. Paul McCain's "Cyberbrethren",
A father's church attendance (or lack thereof) has profound effects on the church attendance of the next generation. These statistics astounded me. Here's an excerpt from the findings:
In short, if a father does not go to church, no matter how faithful his wife’s devotions, only one child in 50 will become a regular worshipper. If a father does go regularly, regardless of the practice of the mother, between two-thirds and three-quarters of their children will become churchgoers (regular and irregular). If a father goes but irregularly to church, regardless of his wife’s devotion, between a half and two-thirds of their offspring will find themselves coming to church regularly or occasionally.