Neither speaker makes this claim. Yoko is the only one to talk about stories being frightening, but never says that stories should be less frightening than they currently are.

Yoko agrees with this, but Peter doesn’t express an opinion. Peter doesn’t talk about children’s stories being frightening at all, either now or in the past.

Neither speaker talks about the overall quality of children’s stories, currently or in earlier times, let alone to compare the two.

Peter disagrees with this but Yoko agrees, so this is the speakers’ disagreement. Peter states that modern stories, unlike earlier ones, don’t usually have clearly immoral characters. Yoko, however, says that modern stories usually do have clearly immoral characters.

Peter agrees with this, but Yoko doesn’t express an opinion. Yoko never discusses what kinds of lessons children’s stories should impart on their readers.