Comment by ironmagma

Nearly every UNIX command has its own way of formatting output, be it into columns, tables, lists, files, or TTYs (and windows, à la emacs, screen, other curses-based utils...). Even `ls` has a table formatting logic to it. This keeps the UNIX native abstraction relatively simple; everything is "just text." But the ecosystem, being quite rich, actually has a lot of divergent requirements for each utility. If that was avoidable, we probably would have seen some other abstractions appear on top of "just text," but we similarly haven't.