The essence of the discussion of this paper is to gain an in-depth understanding of some comparative information on financial literacy in several countries in the world. As data to support this discussion, we have visited some online literature sources on reports or publications of academic pepper books and works, especially the discussion of financial literacy in each country and why it is essential to study. After obtaining several related literatures, we examined it under a phenomenological study approach, which is an approach that tries to understand a problem from several available pieces of information and data. Among other things, we code, evaluate in-depth data, synchronize data, and occasionally perform interpretations. In order to find some relevant and valid information to answer the research questions and hypotheses,this study prioritizes publication or secondary data from various journals and media at home and abroad. After gaining an in-depth understanding and discussion, comparing financial literacy in several countries has shown several things that distinguish countries with a financial teaching background from ordinary countries. In other words, financial literacy determines the welfare of a nation. This study will likely become a meaningful input in the development of follow up studies.