> For instance, why use a machine when you can just hire more people?
Politics could become a reason -- the people who are being replaced by machines become a powerful force, have a strong work-based ethic (different from "work ethic"), and care more about their well-being than the overall efficiency of the economy.
Either way, I'm curious to see more adoption of UBI - even if it is a small, homogeneous population. Maybe working class beneficiaries of UBI could dedicate a larger portion of their time to volunteering, or re-training.
