Even if 10% of the people still come into the office, it will still reduce the spread dramatically. The 90% of people who WFH won't get it from a co-worker. The

Even if 10% of the people still come into the office, it will still reduce the spread dramatically. The 90% of people who WFH won't get it from a co-worker. The 10% who go to the office will have way more physical space than normal and have an actual shot at keeping some distance between themselves and others. Also, they might just be expecting their employees to be adults about things and do the responsible thing even if not forced to. Basically the honor system.