Well I hear or better read quite a lot of shocking news. For instance that mobile phones in some nations cannot be sold to persons under the age of 16, because the rays would harm the brain.
There are few articles and sciences that say under now circumstances children under 7 years should use cell phones and wireless phones, because the bone at the head is still to thin to block rays and the brain would take massively damage.
In many nations people do not know this. Some parents may think they do something good to give their children a cell phone or let their children speak during a call with such a device.
There also have been cancer studies that link extensive cell phone use to cancer, but still there is no warning or sticker on it by the manufacturers like it is common for cigarettes.
Then there are also a few reports of cell phones that simply can explode, because of the battery. There were cases in Asia where iphones just exploded directly at the head of persons and killed them.
If people would know that they carry a small bomb around then they may would think twice. Especially if such devices also can affect the health in multiple ways.
Just think if you forget your phone in basement near the window at a hot day. If it is to warm the phone will explode and burn down your house.