how do you supposed herd immunity develops without low level exposure to viruses and organisms (which is what's in the dirt)? it's quite likely we've prolonged the pandemic by excessively curtailing exposure, which in turn dampens
in vivo immune response necessary for natural herd immunity in the population.
the 1918 flu, which killed 10-20% of the infected, was worthy of that kind of avoidance response, not this virus that kills much less than 1% (and maims far fewer, contrary to your claim). the tiresome messaging (fear strangers and non-conformists; trust our "science", not theirs) of politicians and sympathetic media played this pandemic for maximum political & economic gain, not minimizing impact. it's disgusting.