I’m a citizen of three countries. I don’t know that it is all that unusual to have multiple citizenships, particularly for the very rich (a group I am most deinfitely not a part of) who might access citizenship via investment in a country.
I guess that's what they mean by "it's a billionaire thing"
St kitts and Nevis is only a quarter mil, tho I don't know what benefit that would confer unless you're coming from a country without visa free travel
And for what it's worth, UAE citizenship is not for sale directly, you have to actually live there long term
Nice table on this page: https://www.globalcitizensolutions.com/citizenship-by-invest...