Weddings aren't everyone's cup of tea and some are a faff. Marriages on the other hand, I'd say maintaining a good relationship for many years takes plenty of effort. The idea marriage takes no effort isn't traditional.
I eloped so I guess I was being discreet about it, but even though I wanted to avoid wedding drama, I think there aren't enough joyful milestones and many efforts get overlooked. I'm not going to put the bar to celebrate at such a high threshold that most won't ever get any. Making a significant legal commitment, with all the risks and benefits, seems as good as good a reason to celebrate as any.
I mean, most people say congrats and are willing to celebrate a pregnancy even with the risks of birth injury being for many far more likely than divorce for most demographics. Using the full divorce rate is pretty meaningless when looking at individuals. Risk of divorce varies a lot more than birth injury rates last I read.
it's fair and reasonable to suggest if an institution is not upheld in the way it used to that it has less value.
Feminist writers were not about wanting to uphold a social institution as it was or acting like it had the most value as it was. Marriage is a legal commitment. The legal bindings around it have often been what feminists of many stripes fought to change.
It was very similar in essence - it was for life and women were in the home and expected to bear children. That was marriage in a nutshell.
Not from the writings of the time and before that. Many of the writings on it were about security, propriety, and post-Romantics, securing happiness while knowing there was an equal risk of misery. Children were considered a blessing of marriage, but people knew it wasn't guaranteed to always be expected. Women in many backgrounds were expected to work, whether it was from the home or out. Even well-to-do ones when finances became difficult.
Even with more barriers in the way, people left marriages then too. There is a lot out there on people, usually men, just leaving sometimes just weeks after the wedding. Not having a legal way didn't stop it, it just meant those left behind had a harder time being protected. That was part of the argument in making more liberal divorce laws - to prevent abandonment and the many pains it caused. It's why abandonment is included in both divorce of marriage and dissolution of civil partnership laws.
If we look at the more wealthy men, monogamy for life to their wife was certainly not an expectation or even considered desirable in many times and places.
Marriage legally and socially has always been changing and how important, meaningful and binding has always varied broadly across the population. The idea there was an ideal time when everyone took marriage seriously for life is rose-tinted nonsense.