[hawkice]

I think a helpful lens is to generally worry about what you are funging against. Time, as a fungible resource, can be allocated to work (generally done in fixed portions), and the remainder to other activities. In America (I have no knowledge specific to Korea), a large percentage of those other activities is "watch television". People self-assess as less happy watching television than they do while working. So giving out more time may increase access to things that make people happy (spending time with loved ones) but also increase time spent on things that make them unhappy. Obviously this is only part of the story, but looking at replacement activities would be a great next step.