Nelson Mandela features on the 100 rand note. REUTERS/Siphiwe SibekoA South African policy proposal is being hailed as the first national universal basic income plan.However, experts say it's promising but would pay too little to too few people to be a true UBI program.UBI champions say that only helping the poor can lead to payments being seen as welfare checks.South Africa's top political party has proposed a social safety net that's been called the first national universal basic income (UBI) program.