Yo Yo Yo My Name Is Joe Political parties have existed for decades in the U. S. , But have you wondered why we do or don’t need them. One reason we should have them is because it gives people who aren’t familiar with politics a sort of base to go off of when voting. It also makes it easy to categorize citizens into either Democrats or Republicans by what ideas they believe in. They also help with electing people. Typically the Democrats will vote for Democrats and Republican will vote for Republicans so if nominees weren’t categorized it would make it harder to vote for people.