Final answer:
Rules for descent are not necessary for smooth operation of a society, but they generally exist to provide structure, order, and fairness.
Step-by-step explanation:
In a society, rules for descent are not necessary for smooth operation. However, rules for descent typically exist in societies to provide structure, order, and fairness. For example, in a democratic society, there are rules governing the transfer of power from one leader to another, ensuring a smooth transition and continuity of governance. Similarly, rules for inheritance in legal systems ensure a fair distribution of assets among heirs, preventing disputes and chaos.
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