And you train quite a bit to be an engineer before you start making money on it. Math starts in kindergarten sometimes (not necessarily good, but still), science in early grades. Orchestrating groups, recognizing performance, mentoring, environmental politics? Maybe you have a truly elite family to train you on that, but it’s mostly just kids sorting by bullying and popularity. (This is where the power tripping jerks learn some of the skills that serve them well.) Then by the time you have some of it informally figured out, boom you’ve graduated (college, this is engineering) and no more practice rounds.
I’d look to the armed forces for an alternative set of models.