A recent study by the Bank of Portugal reveals that 15% of 15-year-olds lack basic financial literacy, yet 74% of those same students believe they are capable of managing their own money. This overconfidence, combined with a lack of practical experience with physical currency and outdated school curricula, highlights a growing risk of poor financial decision-making. The article suggests that parents should take a more active role in their children's financial education, starting with practical tasks like managing supermarket purchases to build real-world competence.