That analogy is flawed. Children don't learn to speak by listening to each other babble. They learn by listening to adults speak in cohesive, logical sentences.
> It seem illogical that a sense stream of images would innately dangerous by itself.
If it causes the child to ruminate on a nonsensical topic, it is. Children have very limited time to learn about social norms and human behavior.
> Moroever, a child is going observe a senseless stream of images whenever an adult begins channel surfing in a determined manner.
You seem to misunderstand the amount of time children spend watching adults change television channels, versus say, literally anything else that occurs in their life.
Human sociality needs to be boostrapped. Kids watching this all-day-every-day are /definitely/ gonna grow up funny. Why do you think daycare costs more than a mortage?
It seem illogical that a sense stream of images would innately dangerous by itself. Indeed, most of the things that a child sees at a young age are senseless to the child even if they have a logic to them. Moroever, a child is going observe a senseless stream of images whenever an adult begins channel surfing in a determined manner.