Campaign for the animated MMM here: DONATE

Marrying young and early is not as successful a method as what is presented. Whether or not any two people CAN live together, happiness is better predicted by mathematics. Also bonus on how to prevent divorce (Same thing as avoiding a nuclear war):

LDS church statement that any two people can make a marriage work: https://www.lds.org/ensign/1977/03/oneness-in-marriage?lang=eng

LDS take on Divorce: https://www.lds.org/general-conference/2007/04/divorce?lang=eng

LDS advice on marriage and dating: https://www.lds.org/new-era/2010/04/dating-advice-from-prophets-and-apostles?lang=eng