Why are all the good children's books British?

They're not. Both the UK and the US have long and strong traditions of publishing great books for children of all ages. And so does much else of the world, but British and American children don't get a chance to read them Where the Wild Things Are, with Max Records as Max Photograph: Matt Why are all the good children's books British? When I browse children's books here in the States it feels like a disproportionate number of them are by British authors (I don't notice this with adult fiction, but then I read less of that).
Well, the short answer is that they are not! If it feels like that now, that is just a fashion. British children's books are excellent but, so too are many published in the US. When I was a growing up and all through the 1970s and 1980s the US produced teen fiction which was the envy of the world, with authors such as Robert Cormier and Paul Zindel writing effortlessly and with deadly accuracy about the complexities of home and school. The US authors were even more distinctly way ahead in the slew of humorous novels about serious subjects including Betsy Byers's The Eighteenth Emergency and Florence Parry Heide's The Shrinking of Treehorn