Decades of research on actual cash transfer programs that have been implemented in parts of the country (i.e., Alaska) and the world, have found that the only people who work fewer hours when given direct cash transfers are new mothers and kids in school. In several studies, high school graduation rates rose. In some cases, people even work more. Quoting a Harvard and MIT study, “we find no effects of [cash] transfers on work behavior.” https://economics.mit.edu/files/12488
With each adult receiving an annual $12,000 UBI, this is barely enough to live on in many places and certainly not enough to afford much in the way of experiences or advancement. To get ahead meaningfully, people will still need to get out there and work.