Ukrainian citizenship gives you super advantages:
Visit almost 100 countries without visas, including most of Europe
Obtain a visa upon arrival in almost 50 countries; which means, you do not need to apply and wait for visas before your trip
Your relatives get an opportunity to obtain Ukrainian citizenship or a permanent residence permit
Work in any role in Ukraine, including in the public service. Vote in elections and be elected
Get free medical treatment in Ukraine, receive aid from Ukrainian government, social assistance, pensions and other premiums
Receive free higher education in Ukraine
This is the most valuable document that the state of Ukraine can give you.