Pockets of evidence from the region suggest that parent anxiety and inter-generational discord relating to discipline can increase as the age gap widens. For example, grandparent foster-carers of children orphaned by HIV in KwaZulu-Natal, South Africa reported a feeling of disharmony in relationships with their grandchildren and problems relating to discipline (Nyasani, Sterberg & Smith, 2009). In South Africa, one reason why adolescents worry about the replacing of a biological parent is that parents are valued for their unconditional commitment to provide for their children (regardless of actual ability to do so). Relatedly, parents are also valued for their role in introducing children to their ancestors.