A chip under the skin certainly can't do any damage, small as they are. Why complaining about Lithium in drink water, if it serves public interests? Only when you have to hide something you must be worried about having a bar code in your neck. Electrodes stimulating your brain may increase your activity spectrum of activities, and saving you from wasting time with actions colliding with laws and policies.
Let's get our children chipped at school with the next mass vaccination.