Below is a screenshot of my 4 year old's Youtube session (He already knows how to use a desktop PC and a laptop and navigate YouTube). He LOVES sharks and dinosaurs. But the thing is: He seems to only be interested in watching videos of kids playing with toy sharks and toy dinosaurs and toy reviews. When there's actual documentary-type stuff with real footage and more scientific type videos, he loses interest really fast. This would make it more age-appropriate, right?