The three ideas, of first a ‘natural’ gendered division of labour, second a linked association of women with the domestic and men with the jural sphere, and third a narrowing of wider kinship relations to those of the patriarchal nuclear family concurrent with increased economic specialization, were to remain essential premises in theories of the family for a long time to come. Goode (in Goody 1971) for instance drew on Marxist theory to argue that with the growth of urbanization and industrialization there was a world change in family patterns, as the state increasingly took over kinship functions such as socialization, health and welfare, and the organization of labour and the extended family came to be replaced by the nuclear family. Talcott Parsons, following a positivist, functionalist line of thought, maintained that the nuclear family provided the basis for socialization of children and for the personal development and stability of the adult couple, and identified the ‘isolated nuclear family’ as the ideal family form for the mobile workforce of industrial society.