Ok, then let's go with a negative income tax instead. Other than avoiding welfare traps there is not much merit to the idea of a UBI anyway. People have always worked, the only ones that really need a UBI are those that cannot do work or are in the process of seeking better work but are trapped in their existing one. A negative income tax serves them just as well but people won't associate it with "free money for everyone".

I know a friend who would love to work as a software developer but can't afford even the relatively small tuition that a German university charges its students with his current job. A negative income tax would help him out.