How Athenian Democracy is viewed today has much to do with scholars in the early 20th century. Unfortunately or, in my case, fortunately, many misconceptions have arisen that make us question the true validity of a system that begun in 509 and had imploded by 327. What is appreciated about Athenian Democracy is its intent to become representative of all, not its process which, already discussed by Plato, Aristotle, Demosthenes, and Isocrates, amongst many others, cannot work for cities beyond 10,000 people.
Slaves, women, metics, thetes…they were all excluded even from the Radical Democracy of Pericles’ time. Most countries have a Roman Republic method of Democracy, especially the United States. It was a much better system, but with the spirit of Democracy at its heart.
Check out this article by Ancient History Encyclopedia