Romeo and Juliet died because they were stupid, also because of human errors. Romeo was banished, and Juliet was upset so she drank this potion that would put her in a coma for a few days, so that people will think she was dead, but instead when she wakes up she will be with Romeo. In order for Romeo to know this they had to send him a letter to tell him that Juliet is putting up an act, but because of human errors it didn’t reach him in time. Instead some guy thought that Juliet was really dead, and told Romeo before he got the letter. Romeo then went to the city where he was banished and found Juliet in her coma. Romeo was so upset so he poisoned himself to be with Juliet. Moments later Juliet wakes up from her coma and finds Romeo dead next to her. Juliet was so sad so, she tried drinking the leftover potion from Romeo but there was none left, as a replacement for that she stabbed herself. If the letter reached him in time none of this would have ever happened.