Its because people get other priorities with age. They dont care about learning new things as much, as a general rule. They have their paycheck and they value time with family or friends. The job is just a way to get money, not a choice or a passion.

This is in contrast with young people, who often wants to show how good they are, make a career, get recognized. Believe it or not, those older people wanted that too but not anymore. They did it, but other things became more important than work.

[–] tetris11@feddit.uk 0 points 19 hours ago

which is why its important to let people coast in their careers like we were allowed to up until recently

You shouldn't have to constantly take on new and difficult projects at once just to stay afloat, it should genuinely be enough to punch in, do a single task, punch out after a certain age.