'When Danny first went to nursery school he was really happy that he was going to nursery school, he just wasn't too happy about having to stay there.' Because that's how it goes: people are happy, and then they aren't. And it's just the same if the person happens to be small. After all, it's a great thing - rank and respect! - to reach nursery-school age. On the other hand: there's no mummy, only a nursery-school teacher in a place you don't know amongst children you don't know.