If we lived in a perfect world, there would be no need for prenup discussion because people would marry for the right reasons, but because humans are flawed, you can't trust people's logic for getting married. Some people marry for the right reasons such as love & companionship, others marry for ulterior motives such as security. For those who marry for security, I have one question: How were you getting by before Mr(s). The right came along? It's assumed you were supporting yourself before marriage, so the rationale shouldn't change upon tying the knot. I understand why some people get upset when their partner brings up the topic of prenups because it can be seen as a lack of trust, that (s)he isn't with them for the right reasons. While there are people with good intentions, there are also snakes who seek to get close enough to you before they bite. The point of prenups is to protect the one who has the most to lose if the marriage fails. Men and women with substantial assets would be wise to protect themselves because longevity isn't promised in marriage. You can marry for the right reasons, and life can deal blows to where both parties feel it's best to end the marriage. A good prenup benefits both, but some people slight prenups in their favor if they have a lot to lose. The logic of a prenup is why should you get half of what I've worked for prior to marriage?
There are plenty of stories of high-profile men & women who have been bled dry from thirsty exes because there was no prenup in place. The high profile (wo)man felt they married a solid person & as the years went by, signs started showing that one spouse was getting greedy: Not working, wanting the successful spouse to bring in more income, etc. When you're used to a living standard, you want to maintain or upgrade. I feel for the successful people who have lost everything and have had to start over because their ex took half. If the person with more wealth & assets had a prenup in place, they would've been protected and even though they may have lost half, they could've made it back, plus more in the long run. The person with more to lose in marriage has the right to protect themselves, and if their prospective spouse is offended, that's a red flag. The offended person is showing their true colors. It would be wise for the one who has the most to lose to pay attention.