Keeping everyone in suspense helps prevent the emergence of organized opposition to a dynastic succession. Moreover, they may worry that heirs apparent will seek to force them out of office prematurely.
四位执政者都有意不揭开继任者的谜底。让人们猜疑不定能防止出现对世袭继承行为的有组织的反抗活动。此外，他们也可能担心自己指定的继承人会企图迫使他们提前让位。