"You can't plan to bring your own Marmite sandwich and apple if you don't know about it a day or so in advance," says the Secondary Principals' Association president in response to PM's remarks.

Christopher Luxon says he'd rather parents take responsibility for feeding their children than the government.

Christopher Luxon says he'd rather parents take responsibility for feeding their children than the government.

Christopher Luxon says he'd rather parents take responsibility for feeding their children than the government.