It's not the political will that is missing. The problem is that a basic income has opponents on both the left and the right.
The left would hate it because it would mean an end to many many state jobs. The kind of jobs such as assessing whether people ought to be on benefit or not. They would also hate the idea that rich people would also get this income, and would demand that it be means tested, thereby negating a large proportion of its benefits. (This is not just theoretical - here in the UK, there is always a consistent demand that certain benefits that are universal (such as the winter fuel allowance and the concessionary bus passes) be restricted so that those who have means do not get them. Never mind that a billionaire such Bernie Ecclestone likely wouldn't use a bus pas anyway, let alone notice the winter fuel allowance they receive).
The right hate it because they have to play to a base that hates the idea of people getting money for nothing. Can you imagine the collective frothing at the mouths if a government implemented a policy to give the work-shy money for doing absolute FA?
The crazy things is, a universal benefit should be something that unites the right and the left for their own reasons. The right tend to want smaller government. Universal income solves that by just crediting the account of every citizen who is alive with the amount, without requiring whole departments to do this. This could even be outsourced to banks. Additionally, such a system should almost certainly remove disincentive to work with some benefit systems.
The left should love it because it guarantees that no one is without, while leaving them free to partake of any activity that please, and as their creativity allows. This would also put pressure on companies to pay their workers well as workers would realistically be able to tell them to go to hell if they don't provide decent salaries and benefits.
Liberals should love this because it restores people's dignity. No one needs to beg for their food in this day and age, and no one needs to be a serf to either private companies or the government.
The problem if that the left hates the rich and the right distrusts the poor. So won't happen. Even though it absolutely makes sense.