From past to present, people have left their countries due to economic crises or different reasons and migrated to different countries where they can have better conditions to start a new life.
Starting a life from scratch in a new country brings with it legal obligations and procedures brought by the government of the country to be migrated.
The first step you need to take for a brand new life that you will start in a new country, whether for living or investment purposes, is to become a citizen of the country where you are located.