Why are shakespeare's plays considered difficult for modern students to understand

Shakespeare left out, rearranged, or altered words so that they fit the structure of his verse.

Explanation:

It is important to remember that, when writing fiction, the message that is conveyed is not the only factor that matters to the author. In fact, the author also cares about the aesthetic impact of his writing. This was a concern for Shakespeare, which led him to write his plays in iambic pentameter in order to maintain a pleasing rhythm. This, however, meant that he had to leave out or rearrange words so that they would fit this structure.

im not 100 percent sure but i think its a