re: Why doesn’t everyone sign a pre-nup?

Sure. 50% of marriages fail, but not all marriages are created equal.

Some people get married because they get pregnant after being together casually. Those people should have pre-nups.

Some people get married because of short-term infatuation. Those people wish they had pre-nups.

Some 37 year-old dude with a lot of assets might get honey trapped by an OT-8 24-year-old. He should get a pre-nup.

Some people meet in rehab. Some people believe they are in relationships with people they only communicate with online. Pre-nup. Pre-nup

Some people get married because they have been together long enough to know each other's character, family, and priorities. If people in this category decide they want to go without a pre-nup, it is at least a well researched decision that is not based on national divorce rates.

Of course there are a lot of reasons people decide to get married and decide whether or not to get a pre-nup. One has to look objectively at their own situation and decide what is right for it.