Prenuptial Agreements (Prenups) are intended to be legal instruments for agreeing on what should be done if and when a marriage ends. But what a prenup means is a totally different matter. It is not what they say, but what they mean that matters. And it's why these reality checks can rip a hole in the romance of a relationship or at the very least expose hot love to a cold shower.
What it says about you as the person seeking one
You put a much higher value on preserving your pre-marital assets than you do on their sacrificing a "window of desirability" and lessening their next marriage prospects based on their non-financial assets that may be diminished after the marriage by virtue of their being older.
You're crazy if you think this will not impact your relationship negatively.
All this said, I am in favor of prenuptial agreements for a reason not usually discussed. Prenups offer each partner the chance to see the other at their worst*. This enables each party to say, "No thank you" up front before they get married and thereby prevents having to say, "I want a divorce" later on.
* Years ago I was the preeminent expert on helping divorced couples get back together with their ex's, remarry and live happily ever after (see/hear Oprah clip). When I was doing that, one couple told me, "When you go through a divorce you see your ex at their worst, whereas when you get into a new relationship, you have yet to see them at their worst."
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