Pay for what? I'm going to get in a robot car that was designed, programmed, built and maintained by other robots. It will take me to the airport on roads that are built and maintained by robots. I'll get on a robotic plane that was also developed by other machines and fly to Scotland. I get off the plane and stop in a cafe that was built and run by machines to eat food that was grown, harvested, and distributed by machines.
The people who went from being filthy rich to insanely rich from making all of those jobs unnecessary? Assuming we maintain our democratic system and people vote in their best interests (I know, big assumptions), then there WILL eventually be a political solution if we continue down the road we're on.
Having the fruits of our economy distributed equitably is a problem? Keep in mind, I was talking about a future where robots and machines have taken over doing virtually everything we pay people to do now.