Japanese (and Thais) were masking up long before Covid. (For different reasons, I presume.)

It's common courtesy to mask up when you've got a cold, or when allergy season rolls around.

Women also like ro mask up to save time on makeup. (It's a women thing we men couldn't seem to understand) Guys mask up for fashion too, plenty of cool mask / street fashion.

There's also the problem with smog and pm2.5 dust

And when you get used to it, not nasking feels naked.

I'm usually the only crazy guy who doesn't wear a mask around in Bangkok as well. We are psychopaths. Lol.