This is a must-watch video for parents (and grandparents).
The speaker, Canadian father Rodney Palmer is giving testimony to the Royal Society in Canada about the experience of the school district where Wi-Fi systems have installed in schools. The school district has ignored complaints from parents whose children have suffered headaches and other symptoms. As Mr Palmer explains, children in the school district have suffered cardiac arrests, two of which were fatal. (Two other children were able to be revived after collapsing at school.) The rate of these severe health events was higher than would be expected for the number of children in the school district.
I do not know how the equipment used to deliver Wi-Fi services to NZ schools compares with the equipment used in the Candian schools described above, but if the NZ equipment is similar, it would appear it could be putting NZ children’s health at risk.