If you want the quality of film (as in 'film makes good quality pictures'), you have to feed your computer MORE information, not less.
Define quality.
Today's darkroom is a computer. It's not what you do with the camera, as much as what you do after the shot is taken. Great photographers were always great printmakers. Learn the digital craft.
I know what it is today, but film remains unmatched, they are just not the same material. You keep working to simulate something, why do that?? Just get something you like out of it. If you want it to look like film, shoot film. And you are still gonna spend sometimes on your computer with it.
Explain to me how do you get a tremendous and totally uncalculated random grain?? How do you get that?? Yes you can add grain on your computer but it's only a simulation to normal grain a film can have, but sometimes film break the limits. Specially when it's expired.
Explain to me how do you get scratches you never wanted from the presence of dust in your camera, or some problem with the processing chemicals, or mishandling of your film that would sometimes add up to your work and not distort it. You cannot simulate that in a natural way...
Explain to me 1000 more things, how do you do that and make them look natural...Actually you don't.
We can talk about this all day and night, but digital fans always react defensively, it's not like that, you can make good photos with digital cameras, but they are digital quality, and you can make others with film and they will be film quality.
What has more quality I donno, it depends on what you like.
Computer simulation is only a mathematical process, film is a chemical process that is calculated. You can simulate but how far ??