Welcome to the last installment on Social Life in the World Building series. Previously, we have covered childhood through adulthood. Today we’re going to cover old age and retirement.

When is someone in your society considered old? Is there a physical age that must be reached, or a mental state? Compared to the overall lifespan of your people, how long does old age last?

How can a person tell, at a glance, that someone is getting old? Are there perhaps certain markers that only the aging ...