Quote Originally Posted by Ouch! View Post
(SPOILER)As qwerty has already mentioned, nobody knew that Master Xehanort planned to forge the χ-Blade. If anything, they were over-protective due to the state in which Master Xehanort left Ventus in Eraqus's care. When he arrived in the Land of Departure, Ventus's heart was only barely mended from coming into contact with Sora's newborn heart; they would have been careful of Ventus leaving because of his fragility.
(SPOILER)Sora? You mean Vanitas right?