I agree with you--let me throw in my experience. In my first dev job, I was 26 (not super young, but also not old). We used Clojure, but I had only programmed C

I agree with you--let me throw in my experience. In my first dev job, I was 26 (not super young, but also not old). We used Clojure, but I had only programmed C, Python, and Matlab up to that point. It took me a month or two to really grok it, mostly just learning ~40 hours/week.