Why are laws of inheritance are necessary?

Laws of inheritance are necessary primarily because the world needs a way to know the identity of the new owner of property when the owner dies without leaving their instructions in a will. They provide an orderly passage of title to property.

However, in some areas of the world, laws of inheritance have been used historically to disinherit women and to prevent women from owning property. Those type of inheritance laws are necessary only to protect male dominance in patriarchal societies.