First of all, you are wrong. The dollar has become the currency with the most counterfeit money because of its world circulation. There are several reasons for you to understand this. 1 Because you are exposed to RMB every day, and most news about counterfeit money is counterfeit money, there are few cash transactions in the United States, especially large cash transactions. Almost every American has a credit card, and there are payment methods such as cheque transfer. When people in China receive counterfeit money, most people will choose to spend it (even if not most people will spend more than those in the United States). When Americans receive counterfeit money, they will first call the police (there are many who want to spend it), which will increase the probability of receiving counterfeit money. There will be counterfeit money insurance in large-scale transactions in the United States. It is reported that North Korea's efforts to counterfeit US dollars are not bad. There are also some drug dealers in Colombia, and Russia has forged US dollars, some of which are even better than those of the US government. Do you think there are many counterfeit dollars? Japan may not have as much as RMB, but it will not be much less.