I think digital changed the 'workflow' of photography.
Today's dark room is gimp/photoshop.
And just like in 1969, it will take about 3-4 days to teach a mid/high school kids
to process digital files, and share them with their crowd...
But back to lack of affordable film cameras, lack of affordable and easy to use digitizing equipment, and lack of quick/low effort/low investment film processing.
The bar is set high by the digital-only workflow.
I think
@Helge is right about lack of good scanning options.
There is definitely a lack of innovation there too. It would be nice to ideate what should be done there..
I would like, for example, like to see a scanner integrated better with film workflow.
Let me describe these steps of how I would like to see the film workflow:
1) Load film into camera(s)
2) take pictures, replace film cartridge through the session/travel
3) When back into 'home', load film cartridges into something that can start developing them, and notify me in the morning that it is done
4) For the 'done' cartridges load them into another thing, that scans them into my personal hard drive/card (without sending anywhere online for privacy and cost reasons). If I want 100Gb scans per image, I would have to send it somewhere (and loose privacy, time and a bit of money). But many would use the in-home option if is reasonably priced (and may be will come in a 'kit' together with other parts of the film photography package!).
Basically, I think, many people will be ok with foregoing the 'immediate' gratification aspect for today's digital workflow, in exchange
for unique characteristics (not only in reproduction, but also archival storage, and 'trueness') of the film, and robustness/flexibility/environment tolerance of film cameras.
I realize that to implement the above workflow, film chemistry itself need to change to allow for more modern development process in (in step 3). That's also where innovation needs to happen.
..
So difficult and complicated that, in the summer of 1969, I and a group of 8 or 9 other fairly average kids learned to operate adjustable cameras, develop our own film, and make prints -- in the course of a week of half days. Total time spent learning, shooting, processing, and printing, about 15 hours. Probably easier for kids, though.