I can't tell if this is an intentional strawman but you are in no way addressing the question.

There is literally millions of hours of high quality content to distract children that is not commercial. In fact, young children will happily watch the same thing over and over again.

So why allow them to watch low quality commercial content?

Personally, I literally don't know of a single kid that's allowed to watch YouTube. Trust me, they don't run out of things to watch without it.