बहुषु प्रत्यासन्नं धार्मिकं भर्मसमर्थं कनिष्ठमभार्यं वा ॥ कZ_०३.४.३९ ॥
bahuṣu pratyāsannaṃ dhārmikaṃ bharmasamarthaṃ kaniṣṭham abhāryaṃ vā
Where there are several (eligible relatives), preference goes to one who is nearest, law-abiding, capable of maintaining the household, the younger (as appropriate), and/or one without a wife.
Because the state’s concern is not only ritual propriety but enforceable support for the woman, child, and household—reducing vagrancy and litigation.