Andrew Motion is reported as saying that children should learn the Bible at school (even though he is an atheist). What he actually said was a little more nuanced - he said they should learn the stories from the Bible, the Koran, and the Greek and Roman myths. Certainly - but what about our indigenous literature - that of the Celts (the Tain Bo Cuailnge, Y Gododdin, etc), the Saxons and Norse (the Voluspä, the Hávámál, Gylfaginning, etc)? What of the great Hindu texts like the Mahabharata, Bhagavad Gita, and the Upanishads? Or great Buddhist literature, like The Journey to the West? Or great Sufi texts (The Conference of the Birds, the Rubaiyat)? And so on.
He stipulated the Greek and Roman classics and the Bible because much of English literature is based on them; but future literature will never include stories from other traditions unless they are taught in schools.