Over the years I have left more and more to the camera as cameras become more capable.
My first camera was fully manual. I had to estimate the subject distance and dial in that distance on the focus ring on the lens. I had to choose the shutter speed and aperture to obtain the exposure and depth of field that I wanted.
Then I acquired an SLR which made focussing much easier as I could then see what I would get on the ground glass - no more having to estimate the subject distance.
Then I acquired a light meter which made it much easier to estimate the exposure, although using a light meter is not entirely straightforward.
...
Cutting a long story short, I now have a camera that has autofocus which I rely on nearly all the time. It has sophisticated light metering which is very good, but still far from perfect, so I often use EC (exposure compensation) with one of the auto-exposure modes (P, A, S).
However, I have never had a camera that can automatically estimate the required depth of field and hence the aperture setting. Neither have I had a camera that can automatically estimate the required shutter speed for action shots.
For these reasons, I rarely use full auto mode. In fact, my best camera does not have full auto mode available, although the cheaper ones all do.
Having said all that, if I am really in a hurry then I am happy to use full auto, but that is often when phone cameras get used, as they are, on the whole, probably the best full auto cameras available today.