Anyone who helps to reduce the carbon footprint should be rewarded, whether they are married or co-habiting or living in a shared house/flat etc. Those who shouldn't be rewarded (and usually are) are those that live in mansions.
You wouldnt happen to know when it became a legal contract would you? I assume that it wasnt originally
Marriage is for people who follow a religion, be it Methodist, RC, C od E, or Buddhism, Pagans, and atheists and the like should use civil ceremonies.
My point was that there was a status quo and many people, for religious reasons, didn't want this changing. It was changed and we are now going to see challenges that will, in my opinion, devalue the sanctity of marriage even further. The couple in the story don't need to have a civil partnership, it won't improve their life or change their love for each other in the slightest, they are doing it because now the government have ham-fistedly driven a coach and horses through centuries of tradition, they can claim that the rules are discriminatory, which of course they are now. There was no need, on any real grounds, for the rules around marriage to be changed.