Most people in three African countries have an optimistic outlook despite continuing anger at corruption and economic woes, a survey has found. South Africans, Nigerians and Kenyans all say healthcare and education will be better for the next generation. More than three-quarters also say that young people who want a good life should stay in their countries rather than emigrate, the Pew report found. About 70% of people in South Africa and Nigeria - sub-Saharan Africa's two largest economies - say their economies are in bad shape, along with just over half of Kenyans. Large majorities in all three countries also said a lack of jobs was a big problem.