This article submits that while the world continues to view education as a human right, it also persists in depriving an important section of it -- namely "adult learning and education" (ALE) -- of adequate funding. Located within the lifelong learning domain, which facilitates both the resolution of challenges and adjustment to the vagaries of living throughout a lifetime, ALE is indispensable within the framework of the United Nations 2030 Agenda with its 17 Sustainable Development Goals (SDGs). This article identifies four factors which are currently responsible for the poor funding of ALE. These factors are: (1) the world's obsession with the provision of school education; (2) the lack of adequate instruments to work out ALE's returns on investment; (3) the hope that employers will ultimately supply ALE; and (4) the assumption that an expansion of formal schooling will eventually lead to the establishment of literate societies free of inter-generational crises. Since ALE is generally framed as a broad literacy education project, the author undertakes a review of literacy education costing. This leads him to posit that quality literacy education can be supplied at a unit cost ranging between USD 150 and USD 250 annually within any Global Alliance for Literacy (GAL) country. Finally, the article offers four recommendations to increase ALE funding going forward.