Okay kiddo, so let me tell you about the oath of allegiance in New Zealand. When a person wants to be a New Zealand citizen, they have to promise to be loyal to New Zealand and to follow its laws. This promise is called the "oath of allegiance".
Think of it like a promise you make to your parents to always listen to them and do what they ask you to do. In the same way, when people become citizens of New Zealand, they promise to always be on New Zealand's team and do what the country asks them to do.
It's like being part of a big family, where everyone has to work together and be loyal to each other. And when you're loyal to your family, you always try to do what's best for everyone, right? The oath of allegiance is like that too, because when people take it, they're saying they'll do their best to help make New Zealand a good place for everyone to live.
So that's the oath of allegiance in a nutshell - it's a promise to be loyal to New Zealand and to do what's best for everyone in the country.