I'm still haunted by the memory of an older couple who spent their whole lives in the "full time service". Never earned much money in their "secular work", no pension or savings other than Social Security (which was not much as they didn't work or earn much).
The one asset they had was their house.
Which they sold upon reaching retirement age, with the idea that "this will surely be enough money to live on, renting a home, until the end of this system of things, and we can continue pioneering".
10-15 years later, the proceeds of the sale of the house ran out. He was in his late 70s and had to go get a job. Struggled for years as his energy declined, but had to work. Then he gets a terminal illness.
Went to visit, close to the end. He was dead long before his heart stopped beating. An utter look of defeat and futility in his eyes. Scarcely said a word. "God only knows" what was running through his mind. There certainly were no happy retellings of a "life full of Jehovah's blessings" while paging through a photo album like they show in the JW Broadcast videos.
Hey JW lurkers, there's your future in a nutshell, if you heed the WT's advice that "somehow, Jehovah will provide".