> Or at least do something like P2007 and/or P2584 , so that std::from_chars is simpler to use. Why should everybody reimplement the function to make it less low-level?

Actually, I would argue it’s not low-level enough.

I understand the argument of being convenient, but you won’t actually gain much in terms of functionality or speed.

So that may be a hard sell to expand the standard in this way.