Yes.

And keep parents from uploading them too:

https://www.theatlantic.com/technology/archive/2019/02/when-...

Many of the children are uploading the videos themselves.

Youtube should enforce their own terms of service then.

Can a minor legally grant copyright to another entity by accepting TOS?

Frankly, that might not be a bad idea. There are some interesting consent issues surrounding this sort of thing.

As an example of why, this much-criticized article where a mommy blogger's fourth grader discovered she'd been the subject of a bunch of columns: https://www.washingtonpost.com/lifestyle/2019/01/03/my-daugh...

Banning children from uploading to large public sources sounds extreme but it could actually create really good market conditions for host-your-own services. A group of friends could have their own video host.

You mean like a containerized version of *tube people accessed as a service run for them, or encouraging people to actively host and maintain their own?

Maybe an ideal service would offer both— paid private and shareable containerized hosting and an open-source or free-download host-your-own option.