Yeah it's not great!
There's fairly decent financial aid available to cover your living costs if you're from a low income family, but that cuts off pretty quickly, and unlike the US, there isn't really a culture of paying for your children's education, so there's a lot of kids (like me) who grew up upper-middle class but didn't get much help through university.
Overall, I'd equate the USD = NZD as realtively equivalent, even though there is a currency difference. The average American is graduating into a job paying $51k USD, whereas NZ grads are often starting at $50-55k NZD.
[1] https://www.shrm.org/resourcesandtools/hr-topics/compensatio...