Of course and truly, I majorly understand and realise that for very young children (and in particular for those children who enjoy tales of anthropomorphic mice), both Kevin Henkes' text and his supremely cute accompanying illustrations will probably make Owen's Marshmallow Chick a superbly lovely and delightfully simple Easter themed picture book (and that most young readers or listeners will likely also be heartily cheering that Owen refuses to eat his marshmallow chick and that it therefore becomes as much and as cherished a personal toy and plaything as his, as young Owen's yellow security blanket is).
But while as an older adult reader I can definitely, totally and very much completely so appreciate and celebrate that Owen's Marshmallow Chick is likely absolutely perfect for young children from about the age of two to four years of age (with a simple and sweet text, delightfully lush and fun illustrations, and really with Owen's Marshmallow Chick wonderfully showing the total joy and delight of young children finding all kinds of delicious goodies and treats in their Easter baskets), sorry, but my own inner child kind of feels like there is more than a bit textually and thematically missing in and with Owen's Marshmallow Chick. For yes, I am definitely rather disappointed that Kevin Henkes simply has Owen decide to not eat his marshmallow chick and this scenario then being the end of the story, as for me, Owen's Marshmallow Chick would be a lot more interesting if either one of Owen's friends or a sibling had taken and eaten his marshmallow chick or if Owen himself had felt pressure to consume, to finally eat his marshmallow chick (from friends or from family members).
So while I do agree that Owen's Marshmallow Chick is a cute little story, for my own inner child, there is just not enough narrationally, verbally content present with Kevin Henkes' words, and that yes, the almost complete lack of action and of possible conflict, well, I do think this rather makes Owen's Marshmallow Chick a trifle tedious and not all that engaging (and thus only a three star book for me and also recommended with the caveat that Owen's Marshmallow Chick does not really feature all that much of an actual plot, not all that much of a story).