Programmed or "P" mode is denigrated by many photographers but, can be a way to start with the closest to a viable combination of shutter speed and f/stop. Programmed is the way I put my camera to rest at the end of a shooting session. The reason for that choice is that if I have to pick up the camera in a hurry, the P selection will most likely give me a good start at a decent shutter speed and f/stop combination if I just have to grab and shoot.
At least with my Canon DSLR cameras, the Programmed exposure also lets me easily select both the shutter speed and the f/stop that I want/need.
Using "P", I can adjust my exposure through the entire spectrum of shutter speed and f/stops simply by rotating the top dial. I can adjust the exposure + or - by simply rotating the back dial.
I can do these adjustments while looking through the viewfinder.
Sure, I use manual at times, I use TV (Canon speak for shutter priority) at times and also use AV (aperture priority) at other times..
Having these various choices is like having a toolbox containing several hammers with which to drive a nail. Which choice I make is determined by the type of nail I am driving.
The only hammer I never use is the plastic one left over from my kid's toy box (full automatic).
BTW: With my 7D and 7DII cameras, I also have three user selected modes that I can choose with just a flip of the mode dial. I have these set in various combinations of exposure and focus, burst or not burst modes as well as AEB (auto exposure bracketing).