Working on the Future

Jobs on the future will be more sophisticated. As we can notice technologie are developping a lot of machines to make nowadays jobs easiers.
On the future I think that machines will earn money to work, it seems to be such a stupid thing, but if they do all the work instead of humans how will we earn money if we don't work as a robot that can do things much better than humans?
Nice question... I was thinking about this... but maybe we can buy a robot and we receive the money of that robot, because they work on our place.
This technology is very very sophisticated to create robots to all the jobs that exists, maybe on the year 2040 it appens... but now we don't have that robots but we have machines that make our job easier, and year by year will appear new and better machines to help us working.