Traditional concepts of family are changing. "Married with children" was long the paradigm: but the past decades have seen this erode, to be replaced by more fluid and inclusive concepts of family.
In the last 30 years New Zealand has grown from 3.2 million (1983) to 4.2 million in 2013, and as our numbers have increased, so has our familial diversity.
Statistics NZ has undertaken projections on family life between now and 2030.
One prediction is that couples without children will overtake couples with two children as the most common household group. The number of people living alone is also set to increase; 602,000 by the 2030s.
Many of those will be older people with grown families, who have lost a partner.