CyLegend:
Just look at Black community and you know what it does to people who have relationship outside committement and think that is the way. their children are messed up, they do not go far in terms of studies, career and i think a lot is to do with not being in the soceital norms.

Another example i can think of are marwari community who usually get married young and are often successful in their business and tend to grow bigger because they have the family support and care and do not need to worry about it.

Well, i am not saying that it is only because of marriage but imagine the energy you will have to spend to start a new relationship every few years and if you can put that energy into some place else, you tend to have an advantage.

I guess Europe is a great example now a days with low population growth and other soceital problems becasue people do not want to be committed into societal norms.

People created marriage so that not only a boy/girl can be together but also the family be together and that is usually not the case if you are not married. For me it is an issue of Committement and also TRUST and it will reflect in other aspects of our soceity if not resolved within.