As I was reading through the examples you provided, I could not help but notice that it would take a small bureaucracy of some kind to administer those UBI programs. That kind of defeats a couple of important tenets of UBI: low administration and everyone gets the payment.

My family is of the lower middle class in Canada. We get a federal check of $700 a month because there are two kids in the house. We need only file a tax return, sign an affidavit of the two kids, and a UBI payment is calculated, based on our tax return. Simple. Everyone in a similar situation gets the same amount as us. I would not be surprised that the federal government has only 20 employees directly working on this program across Canada.

This program is much closer to a true UBI than those examples.