Production of things like food, water, energy, etc, all and any needs, those are the jobs that will be there to stay because as humans, living beings, we have needs, and those needs need to be filled in one way or another, and while some things are usually just convienences or luxuries, recent employments and advancements of life make some luxuries needs, like for example, the car, which used to be a luxury, is now required to get most people to their far away jobs, or how computers, are now required for those who work online or for students like you n me.