You also can't just white list things in the Youtube Kids app. There's straight up no option to be able to affirmatively choose what your kids get to pick from.
So now YouTube is just straight forbidden unless I'm picking the videos and that effectively means my kids don't see it at all outside of when I have a fun video to share... and even then I'm wary of what YouTube might suggest what to watch next...
With YouTube it feels like no matter what you do you're in a very sketchy neighborhood where there might be a good house here, but maybe some hell hole next door that Youtube is more than happy to send you to... It occurs to me that while I loved the promise of an internet that offered all aspects of humanity, on a site to site basis, I don't think I want that, even for just me.
So now we're back to the PBS Kids Videos app as the only route my kids get to independently pick what they watch. I'm pretty much done with YouTube for now as far as my kids go just due to the rabbit holes of terrible things on there, and the one time they take a shot at kid friendly stuff, it's really doesn't empower me as a parent.
I'm really enjoying Odd Squad.