Guess which is which. These books credit only Walt Disney Pictures and make no pretense to be anything other than marketing tools for their movies. But a child who is fed a steady diet of such deadly, banal sentences can hardly be expected to create anything other than deadly, banal sentences. There are more substantive problems, too. Surely it is not by accident.
Names bestow familiarity and specificity.
Ariel is just another girl, like you or me, accessible, one of the gang. The little mermaid, however, remains mysterious, but also in some real way closer to the reader she could indeed be me. Because she has no name, she could have any name. Because she is not named Ariel, she could, in my imagination, be Kari. Nameless, she is both essentially mysterious as a mermaid and truly universal.