This isn't a cultural thing. Human evolution is ugly. Evolution's filter function is death. If you can't feed yourself, nature will use you for food.
You are coming from a place of extreme privilege lamenting that people get stressed about losing a job. It's not a minor inconvenience if you're working on something you think is important. Button pushers have little to mourn. People working on big projects have to establish new goals for themselves & align themselves with an entirely new professional network. These are not minor things.