Plot Said To Do It

We can't just walk around this small shrub in our way why again?

Sometimes, it's a good idea to start questioning why people do the things they do in media when there is a clear, much easier alternate to it. Someone could be quick to answer that question with Plot Said So, but although that is a good answer, it's really because Plot Said To Do It. The difference between the two is that Plot Said To Do It has a Plot Saver reason, such as the main heroes not being able to simply walk around a large rock in their path and having to use an item to destroy it because Game Said So, while Plot Said So generally refers to clichèd UnTrashes and previous points in the story being enough explanation for current and future events.