Jobs can still pay on top of ubi which would be enough incentive to hold them. You may as well ask why any navy cook would strive to be general when peeling potatos is less stress. The answer is also higher pay.

> A majority (53%) of Gen Zers surveyed considered influencing a respectable career choice, and a similar percentage would be willing to leave their current jobs if they could sustain their lifestyle as an influencer.

There's some wiggle-room on what "their lifestyle" means, but I doubt that the positive answer is biased toward e.g. HENRYs, and in fact it's likely biased in the other direction. If UBI can match whatever their current lifestyle is (or even exceed it, e.g. paying for a personal living space instead of roommates), then these people are essentially saying that they'd be happy not to work.