As you get old, time becomes a lot more valuable as it’s the only thing that you spend every day and can never make more of. Money is cheap and doesn’t really do all that much, beyond a point. The drama of switching jobs becomes less and less worth it.
I was expecting the opposite conclusion in your final sentence. That staying in a stable, comfortable but dull job becomes less and less worth it. The interpretation relies on the reader’s experience I guess.
