The global financial system has undergone significant transformations due to the emergence and rise of digital currencies, challenging traditional monetary systems while opening up new opportunities for economic transactions. In this growing financial landscape, central bank digital currencies (CBDCs) are gaining importance. This requires commercial banks to adapt and redefine their operational strategies. The economic consequences of digital currencies are now being scrutinized, with particular focus on their effects on commercial banks and socioeconomic factors. The impact on commercial banks includes changes to payment systems and the requirement to modernize the technological infrastructure. The introduction of CBDCs requires a comprehensive reorganization of the financial ecosystem, enabling faster and more efficient transactions. These changes also have implications for financial stability and monetary policy, presenting challenges and opportunities for innovation. Analysing the adoption of digital currencies in various countries, from developed countries such as the European Union, USA and Sweden to developing countries such as the Bahamas, China and Nigeria - is becoming increasingly important. Adoption of digital currencies varies depending on technical principles and successful integration into existing financial systems. The financial industry is experiencing a revolutionary transformation with the advent of digital currencies. This revolution has significant economic consequences that extend to the entire system of a given country. To realize their full potential, traditional banks, payment systems and monetary policies must undergo constant research and adaptability in response.