中西大多数文化都是严格按父姓的，并且随父母姓不只是个人选择如果普遍了对整个社会次序都有影响 世界上大多数社会都是unilinear，而父系比母系要common 得多。dual descent非常少见因为很混乱，难道中国要退化成那样的原始社会。 Patrilineality (or agnatic kinship) is a system in which one belongs to one's father's lineage. It generally involves the inheritance of property, names or titles through the male line as well. A patriline is literally a father line; one's patriline is one's father and his father and his father... ad infinitum, one's nearly infinite line of fathers. The two corresponding adjective forms are patrilineal and father-line. One's patriline is thus a line of descent from a male ancestor to a descendant (of either sex) in which the individuals in all intervening generations are fathers. A man's genetic Y-DNA and his family name (in most cultures) have descended down this same line from father to son. In a patrilineal descent system (= agnatic descent), an individual is considered to belong to the same d (more...)