Here's a basic outline for an advantage and disadvantage essay.
I. Introduction
A. Briefly introduce the topic
B. Present a thesis statement that outlines the advantages and disadvantages
II. Advantages
A. Present the first advantage
1. Explanation of the advantage
2. Supporting evidence or examples
B. Present the second advantage
1. Explanation of the advantage
2. Supporting evidence or examples
C. (Optional) Present additional advantages, if applicable
III. Disadvantages
A. Present the first disadvantage
1. Explanation of the disadvantage
2. Supporting evidence or examples
B. Present the second disadvantage
1. Explanation of the disadvantage
2. Supporting evidence or examples
C. (Optional) Present additional disadvantages, if applicable
IV. Conclusion
A. Summarize the main points discussed in the essay
B. Restate the thesis statement and provide a balanced view
C. Offer a closing statement or suggestion to address the disadvantages, if possible