New Zealand has introduced a steadily rising smoking age to stop those aged 14 and under from ever being able to legally buy cigarettes in world-first legislation to outlaw smoking for the next generation.

Associate health minister Ayesha Verrall said at the law’s passing on Tuesday: “Thousands of people will live longer, healthier lives and the health system will be $5bn better off from not needing to treat the illnesses caused by smoking, such as numerous types of cancer, heart attacks, strokes, amputations.”