Humans, oddly enough, have a pretty insatiable appetite for not dying. You can build someone a 10 bedroom mansion and then offer to give them a 20 bedroom mans

Humans, oddly enough, have a pretty insatiable appetite for not dying. You can build someone a 10 bedroom mansion and then offer to give them a 20 bedroom mansion instead, and they might say, "Thanks, but 10 bedrooms is quite enough." But people generally won't say no if you can offer them a longer lifespan and/or an increase in quality of life. Incidentally, if retirement age is fixed, increases in longevity lead to a higher proportion of society that is only consuming but not producing. Unless you want a decrease in standard of living, you have to compensate somehow, be it increases in efficiency, rapid population growth, or raising the retirement age. If you raise the retirement age, then medicine needs to help make sure most people are not only alive but can also actually be fit to work at age 70-80.