There's a lot of variables surrounding employing humans that can make automation worthwhile even if pay is very low. The "maintenance" of people, such as hiring

There's a lot of variables surrounding employing humans that can make automation worthwhile even if pay is very low. The "maintenance" of people, such as hiring, managing, loss of production because of absence—those sort of things. I'm just speculating, I've no idea how they are reasoning. But I do suspect it's more cultural/personal rather than practical or to maximize productivity.