If you cannot contribute to society in a profitable manner, you are a drain on precious resources. The air and foods that the worker, the professional, the artist consumes enable them to create for the betterment of all. Those who do not work are parasites, like the tapeworm that feeds off the nutrition one consumes, yet contributes nothing to the host body. It may sound cruel, but as the world's resources are depleted, those who are worth less are expendable.
/ < eugenics progressive >
(gag, spit, hurl)
Instead of retirement the elderly need to say they are "on vacation" That's something our self centered generation can relate to.