Masks

Dr Fauci said herd immunity was at 60% and then 70% and now 80%. Currently there are only 20% who are not vaccinated and it can be assumed that many of those have had Covid and now have natural immunity. In spite of this some schools are still requiring masks. Many people wonder if masks have left the medical field and entered the foreboding territory of politics. Reaching 100% of safety in any area is not practical when you look at cost/benefit ratios but who looks at that.