Why do writers write persuasive writing? They do it for many different reasons. For example, lets say they thought something was wrong with the world, weather it be plastic bags, uniforms in schools, or even just their local café menu, they obviously want to change it. But, in order to do this, they need more people on their side. Another reason is just to state an opinion, and get their message out to the world. Maybe no one cares, and maybe they know that, but they want to be heard. One more reason is that they want to convince readers about their side of the argument. To make them turn over, they might use facts. It’s their opinion.