Because it is an extreme fringe opinion? A lot of countries have mandatory schooling (which quite a few kids dont consent), some conscription, a lot of criminals dont consent on beeing arrested. And generally people agree that no consent is needed for at least 2 out of these 3.
I didnt say that. You asked 'how can people not understand, that in the age of...'. I tried to explain how people cannot understand. The explanation is what people cannot understand is far out or what happens normally. (yes, i know, you might have meant this more as an rhetorical device or sarcasm, but I think it is an important question you shd really ask yourself especially since you raised it)