Wondering how long is this experiment going to happen ? Giving basic income to cover their existential expenses like a good food,water, shelter, clothing, educa

Wondering how long is this experiment going to happen ? Giving basic income to cover their existential expenses like a good food,water, shelter, clothing, education and healthcare is fine. However, the happiness depends on how much more can they save(to plan their investment) and also "invest" for their future to uplift from their current social living status to something higher. Until and unless some time is given for the subjects to actually "act on their free will" I doubt whether this experiment would be successful.