" Marriage might be seen, in part, as a solution to a self-control problem, in which people take steps to increase the likelihood that their relationship will endure. If divorce is difficult, then marriages are more likely to be stable. Marital stability is usually good for children (though children can also benefit from the end of a bad marriage). "

― Richard H. Thaler , Nudge: Improving Decisions About Health, Wealth, and Happiness