If that's medieval, then by the gods below, let's go medieval. Speaking for myself, the folks I worked with who came about the craft (software development) from school are always so steeped in theory they can't make actual progress on the tool. They'll throw away a year's worth of effort so they can re-write it in Javascript, no Dart, no Typescript, no...

In contrast, the people who learned at the hands of mentors always showed more interest in actually becoming good at the trade, and favor practicality over theory. They will usually work to fill their own gaps in knowledge, and become some of the lynchpins on any development team.

I'll take an earnest, self-taught person coming up from the QA department every day over a greenhorn fresh out of college.