I know many married couples who openly confess to have no sex. I guess there are many more who do not admit it, most of them because of the partners' sexual orientations. Depending on the country, the financial and social advantage can be huge, compared with staying singles. The same applies to religious orders, by the way, such as Mother Teresa's.

The current discussion may result in the role of opposite-gender marriage being reassessed as well. When financial benefits are removed, views become further relaxed.

With regards to social cohesion and child education, we must keep in mind that the concept of isolated father-mother-child households is only very recent, and restricted to "Western societies".