They are no longer useful anyway except for yelling "GET OFF MY LAWN" at innocent kids.
What makes a person "no longer useful" once they retire?
Does their brain stop functioning? (We’re sorry, but that model’s been discontinued.)
Isn’t retirement want most people work FOR? Kind of like graduation. (No more bosses, no more greetings, no more attending those boring meetings!)
Retirees get to sit back and laugh at the younger generation when they gripe and complain about having to go to work every day. (Sure is cold and icy out there… oh, that’s right, I’m retired. I get to stay inside where it’s nice and warm.)
Retires have extra time to write their memoirs (“Don’t tell me I don’t know ****!” - The life of a Sewage Processing Technician).