If you think about it this came about through laziness and to lower budgets, same deal with great programmers, programmers shouldn't want to do repetitive lazy

If you think about it this came about through laziness and to lower budgets, same deal with great programmers, programmers shouldn't want to do repetitive lazy work but innovate it away. Tedious work becomes a pain on time and budgets, so you innovate to do it faster/better. Animators didn't want to draw all the backgrounds slightly moving and this allowed re-use and new innovations to make movies faster. This allowed animators to focus on the character cels and making characters look better, the main focus. The multiplane camera with movable layers for parallaxing directly led to some of the best early Disney movies (Snow White and the Seven Dwarfs, Pinocchio, Fantasia, Bambi, The Adventures of Ichabod and Mr. Toad, Cinderella, Alice in Wonderland, Peter Pan, Sleeping Beauty and The Jungle Book) and helped their budget as well as made them look better. Plus at the time, it was actually an improvement that animators welcomed to speed up their tedious work.