Athenian democracy would be a really bad idea. Now, we have something called an indirect democracy. This means that citizens choose leaders and they speak on our behalf. In Athenian direct democracy, all citizens speak for themselves. In the U.S especially, there are way too many citizens for this to work. Also, back in ancient times, the only citizens were men, 18 years and older. Everyone else was banned from participation in the government. Hope this helps.
Greek democracy created at Athens was direct, rather than representative: any adult male citizen over the age of 20 could take part, and it was a duty to do so. The officials of the democracy were in part elected by the Assembly and in large part chosen by lottery in a process called sortition
