At what point does it become "safe" enough to open the schools? What about the flu? Auto accidents? Bus accidents? Has this been articulated? "Children were 0%

At what point does it become "safe" enough to open the schools? What about the flu? Auto accidents? Bus accidents? Has this been articulated? "Children were 0%-0.8% of all COVID-19 deaths, and 20 states reported zero child deaths" https://services.aap.org/en/pages/2019-novel-coronavirus-covid-19-infections/children-and-covid-19-state-level-data-report/ https://services.aap.org/en/pages/2019-novel-coronavirus-cov...