Moderator, Hertz; FlyerTalk Evangelist
Join Date: Nov 2005
Location: KRK
Programs: UA 1MM, BA GGL, Hyatt Glob, Hilton Diamond and others
Posts: 12,689
Well dual or even tri citizenship are benificial.
For instance if you own property in Mexico, becoming a retired Mexican citizen is good to cut costs of the middle an trustee. Plus then you will own it, not lease it via a 3rd party.
EU citizenship is great if you live in the EU. Living in Poland and having Polish passport and ID card makes taking care of anything in Poland a lot easier.
Of course same goes in the USA with a USA citizenship.