Financial ignorance could be one of the most common one. We are not teaching anything about economy to kids at all, we teach math, which is probably the closest, but not finance. They learn about history, they learn about geography, they learn even a foreign language in most cases, they learn so many things at school, and none of them learn about economy or how money works. Which I believe is intentional, because rich folk do not want kids to learn more about economy and figure out whats going on, they want obedient little workers, so that is why most people are ignorant when it comes to the market, and make moves like this.