A number of producers, writers, designers and members of the “Black Panther” film team said that it’s crazy for white parents to bar their children from dressing up as characters from the movie. “The idea that only black kids would wear ‘Black Panther’ costumes is insane to me,” writer, actor and executive producer of several “Black Panther” projects Reginald Hudlin, told The Washington Post in a Tuesday interview. “I see kids far and wide embracing the concept of a superhero,” said the film’s costume designer Ruth E. Carter, who urged parents not to get hung up on the fact that the superhero character is black.