The Organization for Economic Cooperation and Development (OECD) describes human capital as “knowledge, skills, competencies and attributes embodied in individuals that facilitate the creation of personal, social and economic wellbeing.”* It follows from this interpretation that investment in human capital includes the sum of all costs that allow a new being to reach economic autonomy. In this paper we analyze the family and social dimensions of human capital and discuss how decisions on human capital formation are taken and how its associated costs are shared. The discussion leads us to identify an important paradox underlying human capital formation, namely the fact that while families are its main contributors the benefits of such investment go primarily to society as a whole. This paradox and its consequences are central to two very important current issues. The first issue, one that is common to many developed countries, is low female fertility which is the source, in particular, of population aging. The second issue, affecting chiefly developing countries, is the inequality of opportunities, a problem lying at the root of underdevelopment. Two options are discussed to respond to this dilemma, one based on redistributive programs and another on market solutions. The paper discusses the limits inherent to redistributive programs and goes on to present at length the alternative market solution. In a nutshell this consists of securitizing the human capital of individuals so as to finance the expenses leading to their upbringing, from birth to adulthood. In addition to describing this scheme the paper analyzes its advantages as well as the difficulties associated with its implementation. It concludes by exploring possible interpretations of the scheme and feasible routes for its adoption.