"Throughout China, Italy, Japan and South Korea, workers have been on lockdown. Last week, the same happened in Seattle. Amazon, Facebook, Microsoft and Google all told employees there to remain home.... In fact, remote work isn't always possible. Fewer than half could do so at least some of the time, according to one Gallup survey. Hourly workers don't get paid if they don't work, and those in retail, manufacturing, or health care usually must be physically present to work.... 'I don't believe people are as productive at home'...."
From "Laundry Between Emails: Working From Home Goes Viral In The Time Of Coronavirus" (NPR).