Why Do Two Parties Dominate Politics?

Imagine you and your friends are picking a pizza topping. If everyone picks one favorite, the cheese wins because it is popular but not too weird. If you let everyone vote for their top three, you might get pepperoni, mushrooms, and olives all winning at once.

In many countries, we use a system called plurality voting. This means if you have the most votes in your neighborhood, you win the spot, even if half the people voted against you. Because of this rule, big groups stick together to make sure they do not split their vote and lose to a smaller group.

If three friends all like different fruits but share similar tastes, they might run for president separately. If they are too close in popularity, the one with the fewest votes loses. This makes people think it is better to join forces into one big team. Over time, small groups fade away or merge into the two main teams.

This creates a two party system where only two major candidates usually have a real chance of winning. It keeps things simple for voters who do not want to choose between ten different options. It also helps leaders make decisions quickly without fighting with too many smaller groups.