For a 9 year old boy, I would finish it and give it to him to use howevery he pleases. He won't understand the quality of the material, etc., and you will enjoy seeing him dragging it around or putting it in his dogs bed, or whatever 9 year olds do. Now, when he gets to an important time in his life, college graduation, marriage, first child, then pull out that good fabric and make him another quilt. I have to tell you that the ones I have made for my children and grandchildren are now mostly in their closets, except for my oldest son. He uses his in his boat for him and his wife to cover up when needed. I must add this, however, if it is making you very unhappy to continue with this project, put it aside and do what your heart tells you.