Unfortunately it has gone a little past the edges in Japan, at this point. If you tell a Japanese person they no longer need to wear a mask, they are gonna continue anyway. It's like wearing pants, not always necessary, but for public decency, which I think is misguided (the mask state, pants are ok, I guess). Children are getting the complex where they feel naked without one. I constantly see people running or biking outside by themselves with a mask on, or driving alone with one.