Elephant in the room being that peppa pig is not a copyright free content...
There is no risk at all to put your kid in front of a peppa pig list of episodes on Netflix or another legal video plateform.
But YouTube can’t efficiently curate or filter content like peppa pig because it’s not legal and the only appropriate action following law would be removal.
And that’s their main problem they actually needs illegal kids cartoon to be posted because it’s what people that put kid in front of YouTube are seeking. And Alphabet have paying customers that ask to place their ads in front of kids...