Many have likely heard the following argument against marriage. What is the importance of a piece of paper? If two people are committed to each other, how is a piece of paper going to make a difference? Then the arguer often will say something to the effect of, I know couple who have a great relationship and they aren't officially married. Their relationship is way better than the handful of other bad marriages that I have heard of on TV and read about in the newspaper who are officially married. This argument demonstrates the use of the fallacy of false dichotomy and hasty generalization. Statistically, the strongest, happiest marriages are #1 committed and #2 legal. But even marriages which are committed and legal are ending in divorce at ever increasing rates.
In response to rising divorce rates, many state governments have instituted what is referred to as covenant marriage. These covenant marriages make it more difficult to divorce by requiring that the couple first go through marriage counseling, they prohibit "no fault" divorce on the basis of "irreconcilable difference." These new covenant marriages also require a 2-year waiting period before the couple can even schedule a divorce hearing before a judge. Experts are generally in agreement that this new arrangement only serves to make marriage more of a trap than really helping people stay together. This new marriage contract forces people to stay legally married who want to be divorced and provides no incentives for the parties to want to stay married. For active LDS who marry someone in their faith, covenant marriage means something more than just making it more difficult to divorce.
Stats Link: http://www.mormonfortress.com/lds-stats