[perl4ever]

"For example, look at the numbers in South Korea, Japan, etc. (where mask-wearing is common) compared to ours."

There seems to be a huge difference in the trajectory of cases in Japan, vs South Korea, so I don't know what you think you're saying, if you group them together. In South Korea, cases went up and then apparently flattened out almost completely. In Japan, the graph I saw has been lower than in other places but is, almost uniquely, not flattening so far, even in the way that Italy or the US has.

So it makes no sense to me to combine them and say "look, that is the example". If one is the example, the other most likely isn't.