> It was clear to people paying attention to the hard numbers by February 2020 that Covid was no threat to children and non-elderly adults ... which led to the rational decision to treat it as a non-risk.

I found that the risk of supplying a deadly contagion to a loved one is a risk that mattered to me. Even if my loved one were elderly or burdened with a health issue.

I also realized some concern for the lives of people I didn't love. FF to now and I mask up when I do service calls in medical buildings (because of high risk patients).