I see this being mentioned a bit in American media. I understand why this can happen. Capital does not want to pay living wages to the working people and workers do not want to work for pennies. There is no such thing as labour shortage, only capital not willing to pay.

But if people are just walking away from jobs, how are they affording subsistence? I have seen restaurants being closed because they don't have workers. So it is not only people who can afford savings who are quitting.

I can't phrase the question very well but the bottom line is this: I don't understand. So any insight you might want to share is welcome.