Rustaceans at the border

We're diverting pretty far from the original topic, but as to it being difficult to get features in C, there isn't any actual requirement.

Consider the BSD sockets API. Why is that commonplace? Did some JTC1 sub-committee sign off on it and then all our operating systems got the same API? No, it's just the right shape and so everybody adopted it and any "standards" are subsequent and simply documenting what was de facto already the case about networking.