I used to shoot slide film. You get it right in camera, or you toss the slide. You don’t find out if your shot worked until the film has been developed and mounted in a slide frame. On the other hand, you don’t have someone in a lab messing with your print. I chose the film I was shooting based on the way I was hoping the final result would look.
Once in a while I would need prints and prints from print film look better than prints from slides unless you use a very good lab, so I sometimes shot print film, but not often.
In 2002, I purchased a Nikon CoolPIX 5700 which came with Photoshop Elements 1. Since then I have upgraded through several cameras and several versions of Elements and finally upgraded to Photoshop. Lots of time and money spent in the pursuit of a better looking photo! I know a few cool tricks but the reality is that I probably use less than 5 % of what Photoshop can really do. Doesn’t matter. It does what I need it to do and I can get what I want done with a minimum of aggravation.
And, I’m comfortable with computers and CAD software having written software since grade 11, and using CAD to lay out printed circuit boards. Working with folks in the phone industry, we have seen people who were not introduced to computers until later in life tend to be hesitant about trying out software features. Your photographer will get it figured out. It will just take some time and experimentation. Scott Kelby’s Photoshop books were a big help getting started. Adobe has some YouTube videos that are also pretty good. Others have put up videos that may or may not be helpful.