No, but I can tell you from personal experience that it leads to many dramatic problems couples can avoid if they wait until they're married to live together. 1. It also devalues the marriage which becomes simply something that happens throughout your history of living together rather than the start of your life together. 2. Many relationships where couples live together before marriage end prematurely. 3. This happens in marriage too, but at least married couples get that far.
1. When the couple decides to get married, they'll know that they have much more chemistry and they stay together for a longer period than most married couples, many times until death.
2. As stated in point 1, that is not the case.
3. So integrity for marriage is determined not by how long the couple stays together and their relationship, but how early they get married?