If you gave me $1000 every month, on a no strings attached replenishing money card, AND if we can keep the price of everything low, that money will directly go to improving my livelihood. Once I'm ok, I would have no problem putting that money back into the economy and even public services. UBI pays for itself. But only if most sectors are fully automated and the work output exceeds a certain level and yes, someone else said you'll have to implement certain policies and laws for people to operate morally within a UBI system. It can be done but only in a sophisticated society.