My mostly anecdotal observation is that many people with US military pensions for example do tend to time retirements around pensions. But I don't know the numbers. I would assume that there have been studies related to how many people actually retire after 20 years where, I believe, they get 50% of their pay. (And what they do when they retire.) I'm not aware of such studies but I would think there's some insight there.
The main flaw is that one of the concerns with UBI is that many people might never start working and by the time they realize that UBI isn't enough, it may be too late. OTOH, someone who has been in the military for 20 years may well decide to retire early but that's a different situation.
The main flaw is that one of the concerns with UBI is that many people might never start working and by the time they realize that UBI isn't enough, it may be too late. OTOH, someone who has been in the military for 20 years may well decide to retire early but that's a different situation.