Earlier quoted context omitted.
UBI is just a special case of a negative income tax where numbers cancel out. The biggest advantage of UBI is its simplicity. You just get your UBI, done, much easier for people to understand and for the government to manage.
> You just get your UBI, done And what about the people that waste their UBI and can't afford to pay the rent or for food? The existing social safety nets can't go away, otherwise people who are irresponsible with their UBI will be left to starve, etc.
What do you do with people that waste their welfare benefits and can't afford to pay their subsidized (but non-zero) rent, or who sell their food stamps and can't afford food? The present programs, despite their high overhead of administration, don't solve this problem either.
> The existing social safety nets can't go away, otherwise people who are irresponsible with their UBI will be left to starve, etc.
Except that existing social safety net programs do not actually address this problem effectively. (Food banks and homeless shelters provide some mitigation and would certainly still be needed, but those aren't the kinds of programs UBI is usually promoted as replacing.)