In all things that we can measure, marriage gives men and women the good things in life. Married men and women report more happiness and less depression than cohabitating adults. Married couples report more satisfying sex lives than single adults. Married couples have more money and spend less to live separately than single adults maintaining a similar lifestyle. And, there is significantly less domestic violence among married couples than cohabitating adults.
Married men earn more than similar single men.
It shows up in every country. There can be up to 40 percent higher earnings. Higher earnings often translate into women being able to spend more time with children. It's cheaper that way. But people often need outside help in getting past their struggles.