Well, the current mode is to select by availability of cheap resumes (majority) or fashion (minority, hip places). Whik I'm not sure I'd always agree with PG,

Well, the current mode is to select by availability of cheap resumes (majority) or fashion (minority, hip places). Whik I'm not sure I'd always agree with PG, a recent anecdata I heard was a company selecting for Lisp because picking Python meant wading through mountains of fresh bootcamp grads with (quote) "overblown sense of their own capability" (unquote) - same applied to JS, less so to C#/Java. (Un)fortunately, the company noticed they didn't have resources to filter that, and decided that by going for "weird but capable" combined with global remote organisation they could filter for people experienced, or willing to experiment with weirder languages. Apparently ithe cost of having to sometimes implement things from scratch was lower than expected.