Training teachers is probably the main physical cost (it was a big problem for computer science in France), but the main social obstacle is the opposition to change from basically everyone : parents don’t want their children to learn different things than they did, teachers don’t want to lose curriculum hours to make room for new subjects, and administrators don’t want to risk making anything new.
Training teachers is probably the main physical cost (it was a big problem for computer science in France), but the main social obstacle is the opposition to change from basically everyone : parents don’t want their children to learn different things than they did, teachers don’t want to lose curriculum hours to make room for new subjects, and administrators don’t want to risk making anything new.