This policy introduces a measure of choice, consonant with our culture. Those younger than 65 can make their own personal tradeoffs between heath and livelihood, while older people, knowing that the virus will be spreading more quickly through the population will be even more cautious, thus preventing their early deaths. We return decisions to people while ensuring that the sum total of decisions does not overwhelm our hospitals. One felicitous result of this policy is that the virus will spread more quickly through the healthier population. This means that when the elderly re-engage in social life they will encounter fewer rather than more infected people reducing the likelihood that they will become sick and die themselves. Ironically, the best way to protect seniors is to let the virus spread in a controlled fashion among those who are not.
Hirschhorn, PhD, Larry, "No double trouble: How to reopen the economy." (2020). School of Continuing and Professional Studies Coronavirus Papers. Paper 8.