In general, a pre-nup is to protect the assets of a wealthy betrothed. For example, if a wealthy groom was marrying a woman with a reputation for divorce settlements, a pre-nup clarifies the extent which she is entitled to if they divorce.
Similarly, a wealthy woman, or one who stands to inherit money from wealthy parents, might use a pre-nup against the groom to protect her assets.
Unless one of these two comes from money or expects to have money soon, I would think a pre-nup would be unnecessary. In addition, there is risk of causing marital discord because it implies one party or the other is already thinking of divorce before the marriage even begins.
“there is risk of causing marital discord because it implies one party or the other is already thinking of divorce before the marriage even begins.”
That coin has two sides. A person asked to sign a prenup should maybe try to see their new spouse as an intelligent, confident person who will address uncomfortable issues in a forthright manner. During the long marriage, that spouse will use that same critical thinking and not let any Doctor, IRS agent, salesman, realtor, etc scam your family.
In many parts of the world, a “clever” person is admired. Many think they become successful in the workplace too.
Sign it, then go be married.
Another circumstance would be if there were children from a preceding marriage, to ensure that stuff that was intended for the prior kids inheritance stayed that way (although creating a trust would be a better idea).