I have met a few Ukrainians who have both Ukrainian and Canadian passports. I know it is not official or legal. They just do not show their Canadian passport.
I am not sure how strict it is in Ukraine to enforce the rules on dual citizenship ie. by stripping dual citizens of their Ukrainian citizenships.
In Kazakhstan it is very strict. The minute they find out, they will strip the Kazakh citizenship and deport to the other country. So people have no choice but decide either to keep Kazakh citizenship or give it up. There is no gray area.
I am not sure how strict it is in Ukraine to enforce the rules on dual citizenship ie. by stripping dual citizens of their Ukrainian citizenships.
In Kazakhstan it is very strict. The minute they find out, they will strip the Kazakh citizenship and deport to the other country. So people have no choice but decide either to keep Kazakh citizenship or give it up. There is no gray area.