Lots of career paths (not necessarily jobs!) add value to society, and I'm not about to do them. Daycare worker? They should be paid WAY more given the value they provide. Even if the salary was higher than mine, there's no way I would consider that as an option.

Conversely, there are lots of dirty, dangerous and demeaning jobs I've never held which don't seem worth it. How many people die in coal mines every year? Would you want to do that?

By all means we should give those workers a decent shot at retraining, like Germany did with their coal miners. If anyone figures out how to use robots to entirely automate their job or engineers manage to make wind and solar scale up cheaply, I would say that's a net positive for humanity.