https://en.m.wikipedia.org/wiki/Functional_fixedness

you get more of it as you age.

a skilled programmer, hacker or sysadmin essentially unlearns this for technology. if you think too rigidly, you end up in analysis paralysis and can't do your job.

childlike mentality is useful for many creative fields such as music and design too. breaking the rules and conventions is often how you get interesting results.