You appear to be obsessed with the idea that if children like it, adults won't. If you're not going to bother finding substantial evidence for your claims that once a person passes thirty, they suddenly lose all interest in beautifully written interactive stories with exceptional soundtracks, then it might be worth simply not repeating yourself over and over. And while it's true that surveys are never 100% accurate, when multiple independent surveys claim exactly the opposite of what you're suggesting, it's usually time to abandon ship.