At least is there in the standard library, one doesn't need to invent one from scratch in every single project, or reach out to the tools floppy while not telling the employer due to code ownership.

No need to invent when you already know how it works.

I could re-type all the essential stuff from std::string that I've ever used myself within 10 minutes, no problem, without looking up external sources, including copy & move semantics and whatnot. But I'm deliberately not doing it. Because I don't like this "invention".