[js8]

I don't disagree but it seems to me that these things require, more than young age, a certain "naivete".

The more expertise you get the more nuanced view of things you get, and it really complicates the problem analysis and the decision of how should you proceed. Basically, as you learn, you become overfitted to the current solution - you see so many problems with other approaches that they seem unfeasible. But people with less experience do not have this "problem". They will happily proceed and experiment. This would by itself end in a disaster, but with the proper guidance of expert, worst ideas can be avoided and the result is often beneficial.