<P> The concentration of labour into factories has increased urbanisation and the size of settlements, to serve and house the factory workers . </P> <P> Workers have to either leave their families or bring them along in order to work in the towns and cities where these industries are found . </P> <P> The family structure changes with industrialisation . The sociologist Talcott Parsons noted that in pre-industrial societies there is an extended family structure spanning many generations who probably remained in the same location for generations . In industrialised societies the nuclear family, consisting of only parents and their growing children, predominates . Families and children reaching adulthood are more mobile and tend to relocate to where jobs exist . Extended family bonds become more tenuous . </P> <Table> <Tr> <Td> </Td> <Td> This article may be confusing or unclear to readers . Please help us clarify the article . There might be a discussion about this on the talk page . (March 2008) (Learn how and when to remove this template message) </Td> </Tr> </Table>

A major consequence of the united states changing from an agricultural to an industrial nation was