When someone says the life expectancy used to be lower and we now have a lot of people who are old are not working would lead you to believe that there were not

When someone says the life expectancy used to be lower and we now have a lot of people who are old are not working would lead you to believe that there were not a lot of old people not working in the past. That would be wrong. The plurality of people were dying at 75 as I said. The average lifespan is very insufficient to tell you how many people you can expect to be retired at a given moment.