I think you are ignoring some bad things that could come out of UBI.
The greatest danger is that people may be comfortable near the BI level until they are about 30, and not really work or educate themselves much (lacking motivation). Then, they want to have a family, and all of a sudden their desires for consumption skyrocket. They can't just join the workforce then, because it will be 10 years before they advance enough to get what they want.
Then you have a bunch of undereducated, inexperienced people who want a lot of stuff.
I'm not saying it will happen, but we have to be careful.
The greatest danger is that people may be comfortable near the BI level until they are about 30, and not really work or educate themselves much (lacking motivation). Then, they want to have a family, and all of a sudden their desires for consumption skyrocket. They can't just join the workforce then, because it will be 10 years before they advance enough to get what they want.
Then you have a bunch of undereducated, inexperienced people who want a lot of stuff.
I'm not saying it will happen, but we have to be careful.