I don't know - smartphone cameras are at least as good or better than disposable cameras were. The same can be said for the quality of camera most folks had. I remember that little camera that took 110 film.

And oh, I've seen many: I worked at a pharmacy, where one of my duties was developing film and helping folks print digital prints. As digital cameras grew better, cheaper, and more widely distributed (thanks in no small part to smartphones), regular film just dropped sharply.

A few folks care, and will sometimes get a fancier digital camera if they can afford it. The vast majority of folks, though, don't seem to care as long as they have the pictures. Realistically, all a lot of folks want is an instant point and click.