Seems like a pathetic appeal to authority to me. Why should I care what weird idiosyncrasies billionaires have? I'm sure they have tons of things they don't want their children learning that a lot of people would consider to be trivial. In my mind this goes back to whether you model children as property that you own or individual humans you're hoping to introduce to the world in the best way you understand how. It sucks that other people's children are going to youtube to turn off their brains. But my kids are excelling because of it and similar services. My girls are constantly trying new things because of what they see on social media and youtube. My 12 year old daughter already plays flute, violin and cello but wants to pick up the saxophone because of content she has consumed. We get everything from weird science experiments to a desire to try sewing or knitting. When people talk about the "dangers" of the internet and social media I struggle to understand what they mean because it's always been an enabler to me to excel. Somewhere along the way so called "hackers" wanted to create safe spaces to completely isolate their children from any variables the world can throw at them and I just cannot understand the mentality.