I read Utopia for Realists earlier this year. A big portion of it is about UBI and is a great read for anybody new to this topic. The thing that surprised me the most is that we were fairly close in the USA in having something similar, this was under Nixon. UBI seems to not really be that left of an idea as i assumed it was. If you are too poor you are effectively costing the country more money than it would cost to just help those to be able to work/spend money themselves.
In my city there was a citizen initiative to have a test run last year, but sadly opposing parties ran a disinformation campaign against it. Saying we already have enough studies that show its not worth it. (Which is a flat out lie, but I guess you can interpret studies as you wish). Most people fell for it. I think for politicians its just too easy to have big enough portion of people uneducated and too busy with their 9-5 jobs so they do not realize how they are being taken advantage off.
EDIT: I do think though that one form of UBI is the future as well, its just a matter of when. But I might also be too much of an optimist. Or maybe we could also just get rid of advertisement that would work as well. Splitting the real work thats then left to do.