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Maybe they drive for Uber? Or they're a driving instructor between students?

At least I can come up with a reasonable explanation for in the car.

What about those people walking alone in the suburbs with masks on? There's nobody else on foot for 2 blocks.

Worst: I’ve seen people biking in parks with a mask on, but no helmet.

My glasses are always fogged up with my mask on. I've tried a few types, none seem to stop this, so I have to choose blurry without glasses, or foggy with them on.

At bicycle speeds with a mask I'd definitely want / need that helmet.

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