Final answer:
While managing family wealth is an aspect of family functions, it's not the primary one. Families serve broader societal roles, including societal stabilization and development.
Step-by-step explanation:
One of the key functions of a family is not strictly controlling and managing its members' wealth, although the way that wealth is managed within a family can have significant effects on the household's consumption patterns. This can be seen in how different expenditures are prioritized when either the father or the mother controls a larger share of the family income. Research has shown that spending habits and children's health outcomes can vary depending on which parent has more financial control. Functionalists would argue that while wealth management may be a function of the family, it is not the sole function, as families play a broader role in stabilizing society and facilitating its development.