> I have already passed their life-expectancy
The reason life expectancies were 35 back then was due to horrible infant and early childhood mortalities. People lived on the close order of 100 years (70-80 or so) back long before we had anything like medicine. For example:
> A saeculum is a length of time roughly equal to the potential lifetime of a person or the equivalent of the complete renewal of a human population. [snip] At the time of the reign of emperor Augustus, the Romans decided that a saeculum was 110 years.
In other words, if you wanted to make sure everyone who had been alive for some specific event was dead, you had to wait a hundred or so years. Does that sound like the reasoning of people who expected to die before they hit fifty?