[CoryG89]

Also, a 10 year old child will likely not fear bodily harm or death the same way a 40-year old adult would, of course that can be an advantage or disadvantage depending on the situation.

[spitfire]

This is also why gymnasts and ballerinas need to be taught young. They lack fear and "bounce" when they fall.

Once they turn 12 or so they lack that "bounce", it becomes much more difficult or impossible to teach at a certain level.

[kube-system]

It's similar for professional race car drivers. Many top drivers start at 6-12 years old.