But the only tools you own are a hammer and a crosscut saw. You could build furniture, I guess. Crude furniture that didn't look very good. But if you wanted high-quality fit and finish, you'd need a wide variety of specialty tools. Joiners and levels and drills and bandsaws and planers and jigsaws and all the rest.
Software utilities are like specialty tools.
They don't do the big tasks handled by mega-tools such as word processors and spreadsheets. But they make your life sooooo much easier. Which is why I have assembled this utility survival kit. Keep in mind, I built this kit to be bookmarked . So you can return to it in whenever you need help with a special computing task.