Kodak has had a bad history in coming up with odd film sizes. I think that it was their hope that other camera manufacturers would get on the band wagon. Add to the list instatmatic, 828, and 620 films.
APS was the result of a collaborative effort of the major film manufacturers and the major camera makers. It certainly wasn't Kodak all by themselves.
Who didn't jump on the band wagon the way they had hoped was the public.
I do use a digital device in my photographic pursuits when necessary.
When someone rags on me for using film, I use a middle digit, upraised.