So, all of New Zealand and Australia? Tipping is a very cultural thing. In Germany you might tip someone your change. Getting 1/2 euro is rare. In Ireland, people usually tip closer to 10%. In AU/NZ, people rarely tip at all.

I tip quite a bit now that I'm back in the US, but I prefer restaurants where servers were paid a better wage and their service was baked in to the cost of the meal.