I think that's a little naive. We could do it now in the US but we don't. In countries like the US I expect widespread poverty after more jobs evaporate, because the wealthy won't want to just support those people, even if we can as a country. We won't need all those hourly workers to do basic things. But what will all those people who don't have a "real job" that does something a robot/ai can't perform do? The US will have chaos and maybe even actual fighting before the federal legislature approves UBI.