You don't need a job, if you can maintain purchasing power without selling your labor. I didn't forget that, I just didn't take such an outcome for granted.
In other comments I have expressed support for UBI, as well as for paying parents to stay home and spend time with their children. I think the more automated our society gets, the less people should need to work to earn a living. But I look around and I just don't see anyone implementing such policies.
You're forgetting that work is a means, not an end, for humanity.