Rural-to-urban migration for work most directly impacts Pakistan’s traditional joint family structure by:

💡 Explanation:

Urbanization and rural-to-urban migration are key factors driving the shift from the traditional joint family system to nuclear family arrangements in Pakistan's urban centers. This change is primarily a result of the economic pressures, limited living space, and changing occupational structure (from agrarian to industrial/service sectors) that make large, extended family cohabitation difficult in cities.