There were negligible differences in the amount of fighting among couples that pooled all their money, some of their money, and none of their money.
But I did find that the longer couples were together, the more likely they were to pool their money, and I do think, based on my quantitative and qualitative look at these couples, that if you have children, keeping money entirely separate will lead to a lot of unnecessary stress. A child is the ultimate shared responsibility, and if you have to hash it out every time your kid needs new shoes, that’s going to create stress.
