Pfft, to be honest, its not just wifi. Our minds, not just our kids, have been bombarded by electromagnetic radiation for the past 40 years or so. From TV screens, to hard-drives, to mobile phones, to high voltage power cables, cordless phones, power bricks, radar both military and civilian et cetera. Probably more important is the use of mobile phones, from my clinical epidemiology tutorials with Bristol uni's head of clinical epidemiology, there is a definite link whether these due confounders or not can only be implemented in a mass RCT. We won't know for a while yet. Its not in the benefit of the government and corporations if any evidence does strong suggest a causal link.
At Washington state university, Professor Henry Lai, a biologist respected by both sides of the argument says he has found health effects at similar levels of radiation to Wi-Fi.
He estimates that of the two to three thousand studies carried out over the last 30 years, there is a 50-50 split - half finding an effect with the other half finding no effect at all.
Damage to DNA = cancer is incorrect assumption which is what the research is trying to suggest. If that were the case, from the food we eat to the sunshine even our own body making mistakes, we would be dead by 10 years old due to the cancer formation. Hence in radiotherapy they use field beams (may be called something else), causes DNA damage to health tissue but still able to repair itself.
My 2 cents; I'm a little sceptical on health issues; there are many other known and unknown factors.