[veidr]

I live in Tokyo. In normal times, people wear masks when they are sick, as you say. It's good manners, consideration toward others.

But now, and since COVID-19 became a thing (February here), "everyone is wearing masks" even when they themselves are not feeling sick.

I sometimes count them when I go out and it is about 95% of people in the streets and 100% of all the shop employees I interact with.

[StavrosK]

That makes sense, thanks for the update. Where I live, it would have been extremely weird to wear a mask outside, but now all the employees wear masks everywhere. Some of them slack off sometimes and lower them to their neck, but that's about it. Amazing how cultural norms can change in a few days.