That's just another assumption you're adding into the ring. I see no reason why UBI would replace disability. It wouldn't even make sense to. They solve different problems.
really? How are they different? I thought the point was the same: make sure people have enough income to survive without working. Why does the reason for them not working change how much they need to live?
if you're in a country where healthcare costs to the individual can be considerable, someone who's disability costs them extra money would need additional funds to get to a baseline of living. Eg I don't need a wheelchair to get around, so my cost of living does not include buying and maintaining a wheelchair. Someone who does would need to pay for that somehow.
People are still expected to work with UBI. Disability is for people whose ability to work is impacted. They don't even have the option to work, or must do so to a lower degree than previously able.
That being said, I can see the argument to reduce disability in the event of UBI.
