All eligible citizens of Ancient Greece were allowed to vote. They would gather up in an Ecclesia where they could propose laws, speak to fellow citizens, and bring a public lawsuit.
One by one, citizens would go up and speak about what they thought should be done with whatever issue they were dealing with. Everyone else who agreed would raise their right hand to show it. That was how they voted.
Democracy and voting have made people's lives more fair. With more people to decide, more ideas are given. It makes it so that the decisions are better thought out and in most cases far more moral.