Your nation has some of the highest electricity costs in the world (I was spending upwards of $280/month in Wellington <2017 for a tiny, studio flat with one PC and one laptop. Flatmates fight each other over space heaters!) Your nationalized airline failed as is now private. Your national payment system for teachers failed so colossally some of them didn't get paid for months! Meanwhile your teachers actively fought PACT (a program I was contracted on), a program to measure student/teacher progression through school.
UBI is overall a terrible idea, but the NZ government (which retroactively changed the laws to make it legal for the GCSB to spy on all citizens) would somehow make it 50x worse.
Unless we have unlimited power as cheap as ocean water and replicators to 3D print everything from unlimited energy, UBI will not work. It will create a State where people on UBI are now slaves to the government, few of which will produce any value. It will be nothing like Star Trek and everything like The Expanse.