Why is it important to consider your readers opinions when writing an argumentative research essay

So you know which kinds of information will best persuade your readers and also they can have a good time reading your book and not saying its boring if u worked really hard on it and so u can can spel out the word to people so u can sell copys and You need to say things that appeal to them. If you have a group of twelve year olds, you probably aren't going to talk the same way to them as you would to a group of thirty year olds.