It's not the age of somebody that determines how the virus reacts. The statistics you're referencing categorize age as a proxy for some real-world vulnerabilities that vary in significance by age. That is, worse outcomes due to Covid exposure tend to be more prevalent as age advances.

But that says absolutely zero about any single individual. Each individual, regardless of age group, can have more or less susceptibility than their age group. It is an _individual's_ health and other risk factors that decide the outcome for that individual -- not their membership in an age category. Therefore, each individual must decide their own risk tolerance and remediation plan.