You know what novels ought to have?
Not just illustrated children’s books. Novels. Adult novels. Preferably excellent old fashioned black and white penmanship in fine crosshatching. Illustrate a lantern, a snowy countryside, a lady’s dress, a tapestry. Something related to the story, but not the scenes itself, which might intrude into a reader’s sense of visualization. Scatter where appropriate.
Why isn’t this done in the publishing industry?