On this planet, people communicate with words, and your artist statement introduces and communicates the language component of your art.
People who come into contact with your art and want to know more will have questions. When you're there, they ask you and you answer. When you're not there, your artist statement answers for you. Or when you're there, but you don't feel like answering questions, or you're too busy to answer questions, or someone's too embarrassed to ask you questions, or you're too embarrassed to answer questions, then your pal, your artist statement, does the job for you. So let's get busy and write the damn thing...