[sudahtigabulan]

> once you develop a good enough utility library for it.

What happens when everybody comes to the job with their own utility library and start working on the same codebase?

Would you like it if you had to get up to speed with several utility libraries your coworkers developed for themselves?

A common set of tools, like the Unix commands, makes it easier for people to collaborate. They were put in an official standard for a reason.