It wouldn't have been needed. Nor was the one we did have. The huge amount of fear in March 2020 resulted in evidence of that*: Cell phone tracking data in the US showed people were staying home about a week before a single lockdown started. The lockdown orders had no effect, no additional people stopped moving around, and movement started creeping back upwards only a few weeks later while the lockdowns were still in full effect.
*I've looked for this over and over since then and haven't been able to find it, I get the feeling it might have been taken offline.
*I've looked for this over and over since then and haven't been able to find it, I get the feeling it might have been taken offline.