dikembe mutombo famously cancelled his first wedding because his wife didn't want to sign a prenup. say what you will about the guy, but he had a lot of money tied up in building schools and hospitals in his home country and didn't want to risk any woman messing that up. the woman he ended up marrying signed one, and afaik is doing just fine after his death while none of his investments got cucked. it's just a good idea if you've got cash.
Germany