Marriages are monogamous. Prohibitions on first-cousin marriage exist in Catholic cantons of German Switzerland. Neolocal residence is favored today, but newly married couples often reside with either the mans or womans family. Marriage in the mid-twenties for both sexes is common.

What countries is it illegal to marry your first cousin?

Most states in America have either outlawed or restricted the practice, as has China, Taiwan and both North and South Korea.

Can you marry your first cousin in Europe?

Marrying a first cousin is still legal throughout Europe; in fact, the only prohibitions against it are in some of the United States.