Re: Mixed feelings
You could set the basic income by 1) taxing earners a fixed percentage of all earnings (both labor and investment income), then 2) dividing by all population and handing out cash. That eliminates the requirement to determine or specify need for the most part. There would still be requirements like children going to school, but it could be paid from the allocation.
This method autoscales the basic income to the level where most will work. Think if the tax is 15% and only one guy in 100 million works, even if that guy makes 1 billion, everyone only gets 1.5. For the small percentage of free loaders, we are bribing to get out of our hair, but we pay today in other services anyway so that isn't so different.