I doubt I'd ever get married without a pre-nup which can and often does cause all kinds of other emotional turmoil in a relationship.
But what still gives me pause, even with pre-nups, is from what I've read the "unforeseen circumstances" provisions can be interpreted in wide degrees. And major changes to financial situations during a marriage, as compared to the beginning of a marriage, can nullify them. It's my understanding that if, for instance, a woman with a lucrative career decided to stop working after having children, or lost her job and her desire to try to find new work, over the course of time that change in financial situation could be enough to nullify anti-alimony clauses in a pre-nup.
This probably seems like an unlikely scenario but going back to what I said before where people can get caught up in past experiences... I have had several successful, career women that I was dating who suddenly and very abruptly changed their minds about how they saw their own future unfolding. After we were together for a while and financial stability became apparent. It's jarring, confusing, and irritating for a woman you're dating who suggests she is career oriented and enjoys her job and "takes care of herself" to suddenly start saying "Oh well if we had kids I wouldn't want a stranger raising them, I'd want to be a housewife" simply because she found out I would be able to support that kind of lifestyle. It's one thing for them to be up front and honest about it, and entirely another for them to so drastically shift so suddenly to a completely differing opinion.
It makes me wary of... every woman. Unfairly but... hard to get past it.
