Maybe it's time for it now? It doesn't seems like this Coronavirus thing is going to end that soon and many people will be forced to stay home, either not to infect someone or to be infected. And if it means that 20-30% of the population is out of the work force and they are not very likely to come back soon, this is pretty much what the UBI is trying to address. As someone once said, every crisis is also an opportunity. If there ever was a time to really consider it, it would be now.