First, Japan has long been a developed country. When the coronavirus broke out in China, Japan provided China with a large number of medical facilities. On many busy streets, banners read "Come to Wuhan, Come to China". It can be seen that the quality of Japanese nationals is very high now, and we certainly don't need to worry about the understanding of the epidemic. Moreover, the Japanese have long paid attention to garbage sorting, so they attach great importance to health problems. Therefore, I believe that the awareness of Japanese nationals will never provide Japan with too much pressure on epidemic prevention.
Second, the coronavirus broke out in the world's second largest economy, and Japan thought that no matter how complicated the virus was, it was not worth mentioning in front of the Oriental Dragon. They believe that China can develop or find drugs or antibodies to inhibit the virus before the Olympic Games. Although two neighbors sometimes argue, they will not fall apart at the critical moment, so if China can find a way to defeat the virus, it will definitely share it with the Japanese. With such a strong neighbor as the backing, Japan certainly does not need to worry too much.
Third, there are still a few months before the Tokyo Olympic Games, which seems to be very short but actually very long. A few months is enough time for a developed country to control its own epidemic, and the most important people during the Olympic Games are nothing more than athletes, referees and Olympic-related staff. As long as they can ensure that this part of the population is not infected, the pressure of holding the sports meeting as scheduled will be greatly reduced.
To sum up, in the face of the epidemic, Japan still insists on holding the Olympic Games as scheduled and will make full preparations. What we need to do is to trust Japan and support it.