Great comment man! This is exactly how I feel about it as well. I mean, its like when you wanna learn forex. One side of the matter is that you read up bunch of technical strategies for example but the other is when you go to the market and it ain't working for you and it feels you still kinda missing something. That something is simply the experience...
The other case is however the people who do repeatedly something wrong and don't know what it is, although has some experience from the market already and to these people I believe are these information helpful the most.

Exactly as you say, we are all like these children. We need to be burnt, we need to do these mistakes to remember them, we need to drill anything we wanna be good at.

Thank you @kashmirz for your reply!