Democracy is one of the world's most practiced systems of government in today's world, and we have big Nations like the United States of America and other influential western countries practicing this system of government and has also influenced many African and Asian countries like Nigeria and Japan respectfully and even those that don't practice full democracy still have some elements of democracy in their system of government.
Democracy is a system of Government when a country believes that the citizens are the Supreme rulers of the nation and therefore power is transferred to the people to decide who rules them true and election where the person with the highest votes becomes the people representative.
Democracy is as old as human civilization itself in a democratic system the people are the ones who determine the leaders and the laws of the land through a majority vote it also provides an environment wherein fundamental human rights are respected and the people are allowed to exercise their Free Will.
the major issue in a democratic country is that it can be too unstable due to constant leadership changes
A government can be removed or violently replaced by other governments. And each government with it's own ideology and if a country institutions are unstable and the countries system has no clear path on growth and development each government will come and destroyed what the previous government has done in order to implement his own rule and when this keeps going on the country will be revolving around circle without any major growth.
Too often countries vote for governments who promise immediate benefits for individual voters.
People don’t understand or are educated on the importance of electing someone who will respect everyone’s rights. They don’t understand the importance of electing a leader who will follow a constitutionally defined process for making and carrying out decisions.
America for instance is a huge democratic nation but when you check other democracies especially the new ones it's a totally different story and doesn't give a picture of America democracy.
Therefore Democracy seems to work best in places where the population is well educated and informed, ethnic tensions are few, and also the gaps between rich and poor aren’t too large.