[failwhaleshark]

In the US, ~50% of people flatly refuse to get vaccinated. Most believe Bill Gates is going to microchip their precious bodily fluids because some genius on TV espoused a conspiracy theory.

To the end of controlling this pandemic, I think you cannot rely on voluntary participation because it creates a Tragedy of the Commons situation where people can opt-out for made-up religious, comfort animals, or conspiracy theory reasons that have zero to do with public health.