In many traditional societies, extended families often lived together in one household, with grandparents, parents, and children sharing responsibilities and resources. Decisions were typically made collectively by the elders. In contrast, 21st-century Western societies often emphasize nuclear families (parents and children) living independently, and individual autonomy in decision-making is highly valued. What is a key difference between traditional and 21st-century Western family structures, according to the text?
A) Traditional families had more children, while modern families have fewer.