at the very least, there's people who enjoy the experience of hand-crafting software - typing, being "in the zone", thinking slowly through the details.
then there are others, like me, who enjoy thinking abstractly about the pieces and how they fit together. might as well be doing algebraic topology. nothing bores me more than having to type precise but arbitrary syntax for 5 hrs (assuming you've decided to use the brain capacity to memorize it), and having to fight compiler/small logic errors throughout. I like the thinking, not the doing.
yes, we havent needed AI to build this for decades. we did however need to waste a hell of a lot of time doing essentially physical, mechanical work with your fingers.