That probably correlates with intelligence. It is a waste of intelligence, but it certainly requires it.
Once you've got it though... that's when it starts to be difficult to stay idealistic and optimistic.
Staring down the barrel of spending your 20s doing arduous, stressful work while your friends have fun, passing prime relationship building years, entering into final childbearing years...not much room for idealism once reality hits.
No formal ones. But you better keep up.
I know a few med people and a big one for them is risk aversion. Medicine never has a recession. There will never be a glut of doctors. You don’t need to job hunt every 2 years.
leetcode. gotta keep up even if you're 15 years deep in the tech industry