Write what you know.
This is such a standard truism that those four words on their own come with multiple connotations and denotations. But what about when an author needs to write what is not known? For an author to write a character of the same age or younger is not much of a stretch. But how does an author write someone who is significantly older?
Reading, research, and observation.
There are numerous memoirs, autobiographies,, and scientific descriptions of what life is like for the elderly. Given that a large percentage of any given population is elderly and ageing research becomes hanging out with the senior members of your community and asking questions. This also leads to observation. Just by watching and listening you can learn things about people that they might not think to tell you.
#IFeelOldWhen young authors pick my brain for stories of the "good old days'.