As a culture, we tend to think of young people as kids until age 25 and put older people out to pasture at 65, cutting a person’s useful lifespan down to 40 years. So much wisdom, knowledge, and experience could be shared across generations if people were judged by their aptitude and ability, not their years on the earth. A wonderful classic movie which deals with this subject is “As Young as You Feel” from 1951.
The title aptly describes the subject matter, since this story is about a mature man’s quest to prove that companies are doing themselves a disservice by forcing experienced workers into retirement at a fixed age.