冠姓权当然重要。“冠”的行为代表一定的实力，“权”这份权力涉及到子女的继承权等。姓才是最不重要的部分。重男轻女的根源在哪里，是“女性不能做传后人”，可是事实上女性的线粒体可以绝对遗传，女性承担着生育的所有风险，冠母姓是完全合理的事情。参考冰岛，父亲因为孩子随母姓担心和自己不亲
It's important to have a name. The action of a crown represents a certain strength, and the power of “right” relates to the inheritance of children, etc. It's the least important part. The root of the preference for a son is the fact that a woman can't be the heir, but in fact the mitochonoids of a woman can be totally inherited, and the woman bears all the risks of childbirth, and the mother's name is perfectly reasonable.