I find it difficult to believe Google never knew these videos existed, since they appear to be an entire industry based on copyright infringement and gaming their algorithms, one would expect Google to want to kill them with fire. That they are allowed to proliferate can only mean they serve Google's interest for the site - they drive clicks and views.
Whatever other motives there may be for them (personally, I think they're nothing more sinister than monetizing clickbait) I think it's important to remember that Youtube is a business driven by clickbait, and the design of the site reinforces this everywhere it can.
That makes sense of course. In my mind I thought that doing this wouldn't stop them from running advertisements. But I guess it would undermine recruitment of new content creators.
As I understand it, Youtube isn't profitable for Google, and a lot of their decisions wrt their algorithms seem focused on increasingly desperate attempts at wringing some semblance of solvency out of the platform, so I wouldn't expect them to be very willing to work against their interests right now.
I saw how at my local primary school, kids were happily jumping up and down to a song and suddenly there’s a chocolate advert.
Imo the safest way to let kids browse is walled gardens like Netflix Kids. But that would also be unleashing an entire new addiction.
The ideal scenario is parent supervision, but most parents don’t have enough time/patience to sit with their kids everyday. In fact the iPad is meant to be the new babysitter!
It’s quite a problem, this one is.
Besides it is not that hard to download local copies of the videos you want and now you do not even need to be online.