$1000 is not enough to quit their jobs or get a nice apartment. They could move slightly closer to work if they have to commute. It's not enough for a real tuition or to support them to study instead of work. I don't think we've ever had a universal basic income test. We have always missed the universal and basic part. It's below basic and not at all universal. I suspect that you need to get international cooperation…
I was working as a home assistant and learning C++, took me a year before getting a programming job this way. Could have been much shorter if I had $1000.