In the real world, and not bullshyt studies, we males decide whether marriage is even on the table or not, while the female waits for it to be brought up. We are the ones deciding if marriage is even a possibility. Women will 'lower their standards' after age 30 for the opportunity to be married because of societal pressure; we males won't.
And most of us have come to the realization that there is no actual purpose to being married, that is why the marriage rates are dropping.
The fact of the matter is that marriage is a social construct. There is no human purpose to being married. You can still create a two person household and co-parent your children.