Not so surprising. You have also the same outliers with Hong Kong and Taiwan. - In Japan, people naturally respect social distancing. Touching someone is considered rude, everyone bows instead of shaking hands and nobody kiss. - Almost everybody wear mask when they are sick to avoid contaminating others. They do that since way before Cornavirus and on voluntary based. - Washing hands is common, being clean (bath cult…
The elderly in Japan are extremely active and are very well socialized with other elderly thanks to public transportation and compact cities. They are very independent and mobile. Considering that Japan never took active quarantine measures on a nationwide scale, it's honestly a mystery why Japan is an outlier.