We can’t plan for everything, but we can help manage life’s unknowns by talking openly about what matters to us and what we’d want most if we became seriously ill.

Earlier this week, the CDC Advisory Committee on Immunization Practices approved the distribution of the Pfizer-BioNTech COVID-19 vaccine to children 5 through 11 years old. This vaccine had already received an emergency use authorization (EUA) for that same age group from the FDA. As a result...