I think this sort of thing happens on a personal level as well as a societal level. There’s always a point in your life when you realize that Santa Claus isn’t real or that there’s no such thing as ‘true love’ and a little bit of magic just disappears from the world.
What I find interesting is how one continues to enjoy something which has been disenchanted — like adults who still follow pro wrestling, or people who watch magicians even if they know how the tricks are performed.
I think one way to continue to entrance people who know how the sausage gets made is breaking the fourth wall and going meta — Penn and Teller’s cup and balls routine, for example.