Software doesn’t need maintenance
Sure, the title is a bit click-baity. But software really does not need any maintenance, because it’s not a house nor a car. You don’t need to change oil in it, you don’t have to paint it, it does not rust and it does not wear down. If the hardware is running, in hundred years it will work exactly the same as the day you wrote it. Isn’t that amazing? So why do we treat our systems like they were a building or a car and then wonder why that fails?