There will be a rise in deaths when doctor offices close so people can’t get physicals, cancer screenings and the rest. Then you have the rise in suicides.
Been thought of and proposed. Largely shot down. There is no measurement of those effects, just as there is no measurement of the opposing effects — of misdiagnosing a problem when people DO go to the doc and get the wrong treatment, and of course when they do go to the doc and get a test they suffer anxiety awaiting test results, the stress from which is hypertensive.
Frankly, the only big increase in death rates last year for 65+ that was NOT Covid was the ongoing multi year increase in opioid deaths. These happen even at 65+, and they are happening more each day. Small numbers compared to the virus, but they do happen. (Factored into the Excess Death curves)