I think even if we are talking about the US or any other western country it’s not universal kind of culture. What’s common or expected in some circles are unheard of in others.

There is a lot of change in a society but it depends where you live (small conservative town down south or large city on the East Coast) or and what you know (have you seen other places) and how you were raised and where you work and who you associate with. Marriage means so many different things to me people. That’s why you can’t really discuss institution of marriage not in relationship to specific cultures.

I also wouldn’t look at marriage as institution oppressive to women. I know way too many men oppressed by marriage while married and after divorce (alimony and so on). So marriage could be oppressive or could be simply a choice. Depends on who you ask.

If you were raised by parents who condemn divorce, surely you think it’s a stigma and live in misery because you (hypothetical you) are afraid what people might think. If your parents value independence and free choice, you will not allow yourself to be oppressed and likely wouldn’t care what people think .