If there were visible well known characters that could be printed for those and keys on a keyboard for inputting them we would probably have RSV files. Because they are buried down in the nonprintable section of the ASCII chart they are a pain for people to deal with. All it would have taken is one more key on the keyboard, maybe splitting the tab key in half.
> If there were visible well known characters that could be printed...
...There would be datasets that include those characters, and so they wouldn't be as useful for record separators. Look into your heart and know it to be true.
