When you boys become priests and elders and begin to date, you need to know that the best place to date is at Church and Church-related activities. As you date, you will be entrusted by a girl’s parents with their most cherished blessing. You will have the responsibility to protect not only her well-being, but also her honor, even above your own safety. One of the duties of manhood is to safeguard womanhood. When you become a parent, you cannot shirk this responsibility to be concerned for the dating of your own children.

- President Faust – May, 1988

via LDS.org – Ensign Article – The Highest Place of Honor.

President Joseph F. Smith said this: Not one child in a hundred would go astray, if the home environment, example and training, were in harmony with the truth in the Gospel of Christ, as revealed and taught to the Latter-day Saints. Fathers and mothers, you are largely to blame for the infidelity and indifference of your children. You can remedy the evil by earnest worship, example, training and discipline, in the home.

Gospel Doctrine, P. 301 via Inspired Constitution :: The Book of Mormon and the Constitution.