Marriage is probably something best left to the more job-oriented folks with preferably the least amount of emotional entanglement. Especially if the job involves caring for third parties, i.e. children. For that, a cool mind and good negotiating powers are paramount. Any sentimental weakness can quickly escalate even the smallest issue. Tidying up now or later, one bedtime story or two, my turn or hers...all of these marginal confilicts could be easily resolved with less emotional baggage rumbling along on the conveyer belt of family life. In fact, I would suggest that children might want to be rotated from one marriage arrangement to another to spend only a minimum of time with their biological parents. This would ensure the output of more independant, well-adjusted, problem-solving oriented human beings, fit to get into a cab at 2 am to catch the early flight out to be at the meeting on time to maximise rewards for the family enterprise while the partner single-mindedly and undeterred gets the other half of the job done, weekly activity coordination, household accounting, food allocation, cognitive development charts and oil change. Truly, who needs love when they have marriage?
