ocr: Untill 1991,the lives of South Africa's many ethnic groups were structured by apartheid, the system of racial segregation controlled by the white minority. The Dutch-descended Afrilcaners dominated politics; the English-spealding whites the economy. The black majority was marginalizedsocially andpolitically. The extended family has been undermined - - by regulations forcing men to migrate for work, leaving their wives and children in the rural areas. A small black middle class has grownl up, but most black South Atricans are underemployed. Ethnic tension remais high in the transition period fo ...