> Maybe Prof. Peter J. Spiro only hangs out with very rich people who can buy some citizenships
That's what it sounds like to my ears. Plus, according to Wikipedia, anyway, he is a leading expert on dual citizenship. I suspect he lives in fairly rarified air and also that this is a special interest of his, so people who don't have the means required to have additional citizenships aren't really much on his radar.
That said, people don't necessarily have to be wealthy to do it (although I think they have to not be poor). A friend did it by living and working (in a field in demand) for enough decades in the country that he became eligible to apply for citizenship. He's nowhere near wealthy, but squarely middle class.
That's what it sounds like to my ears. Plus, according to Wikipedia, anyway, he is a leading expert on dual citizenship. I suspect he lives in fairly rarified air and also that this is a special interest of his, so people who don't have the means required to have additional citizenships aren't really much on his radar.
That said, people don't necessarily have to be wealthy to do it (although I think they have to not be poor). A friend did it by living and working (in a field in demand) for enough decades in the country that he became eligible to apply for citizenship. He's nowhere near wealthy, but squarely middle class.