This is a democracy due to that when this country rose against England, it was motivated to have a say in government and laws which it felt were unfair and had people to give them say in government affairs. Hence, this a representative democracy. Citizens vote for their government officials and the checks and balances prevent one branch from having too much or too little power. These officials represent the citizens' ideas and concerns in government.
They did not want to share political and economic freedom with freed slaves.
The state has provided insurance that help with paying for medical needs and educational needs that are usually very expensive. This is important so that we don't have to pay for things like accidents, or education.