The example the OP gives is not a good example of a universal income. Really universal income is the floor for a civilization. We have a universal income right now in the US for people who choose to participate in society (ie non-homeless people) in the form of foodstamps, medicaid, etc.
There have been propositions by notable economist and behavioral scientists to simply pay all US adults $40K per year and to leave them alone to do whatever they want. First of all, it is not communism (there is no suppression of the right to work or launch business or income gained on top of the minimum income). The people who propose this believe that if you free up more people from having to work to support basic existence, you will have more entrepreneurship, research and development, better participation in politics and education and the arts etc. All of the dreams people have say in college, you can actually chase if you were so motivated. In fact, you only need a extremely small percentage of people who prior would have been caught up in a relatively unimpactful rat race to turn to say scientific research, successful entrepreneurship, teaching, politics, the arts and literature etc to make it worthwhile given the impact these people have (one steve jobs is greater for mankind's development than 60,000 people working in a factory assembly line or in marketing positions at various companies). Aristotle wrote on this topic. I can't remember the quote but basically it was about needing to having time to sit and ponder about the stars, time which was not available if you needed to be farming all day to put food on the table.