What makes writing worth reading?

What a confusing yet interesting question! To me, I want to read something that is interesting, clear, and grammar-friendly. So, when I am writing, I try to make my writing something that someone else would find interesting and would want to read.

Making your writing worth reading also has to do with your audience. If i am writing for younger children, I am going to make my writing more expressive and inviting and intriguing so that the child(ren) will want to read the text because they find it interesting and want to imagine the world that I have written about.