United States

The fantasy of the nuclear family is holding us back

Phumzile Mlambo-Ngcuka is United Nations under-secretary-general and executive director at UN Women. The views expressed in this commentary are her own. View more opinion at CNN. (CNN)Cameroonian Christine Banlog, 64, has been raising her three grandchildren by herself since her daughter's death in 2011. Banlog's day starts with the early rush to buy wholesale produce that she can sell in the local market. When the market closes at 3 p.m., Banlog doesn't stop.She sets up a small stand near her home to sell whatever's left. "I use the income to pay school fees, even though it's very difficult. Money is not enough," she says. At the end of every long day, Banlog goes home to cook dinner. Banlog's family configuration is not the conventional o ...