The argument is commonly made that Social Security's full retirement age should be increased because people live longer now than they used to. Actually, life expectancy has
declined recently but it is still higher than it was in past decades.
I doubt anyone's mind will be changed but there's a
new study showing that increased life expectancy has only minimal effects on labor force participation.
I submit that the main reason older people are less likely to work than young people is that their health has declined and they're no longer able to do the work they've done in the past. How many people do you see working in construction who are in their 60s or even 50s? Even those who work in offices usually have health problems that keep them out of work more frequently as they get older. People live longer but we have no way of preventing aging from having effects on health and ability to work. Younger people like to visualize themselves remaining vigorous until they suddenly get sick and die but that's not the way it works for most people.