Ok but the amount of education that is needed to join Jane St is certainly very large, but acquiring the language itself is probably a very tiny amount of that. That's exactly why I'm disagreeing: there is much more to know and to learn than the syntax and semantic of a programming language to do a good job, that's why when I consider hiring I'm not insisting too much about previous familiarity with a given language; that's the easy part.

yeah i think we broadly agree. Language syntax is the frankly lowest hurdle. Or should be. Knowledge of ecosystem and best practices and engineering wisdom is much more important.