Like many things I am sure that there were people who were concerned that photographers would be losing something important as the newfangled automatic aperture lenses became common on the single lens reflex cameras. Likewise when automatic exposures became common features. Personally I like the ability to work completely manual when I want, or take advantage of auto exposure, autofocus and all the rest when I want. It is nice to have options.

As for those just starting out, they will learn what they need to know if they have the interest. Those who run around using their cell cameras to capture selfies may or may not learn it. Not because they can't or won't, but because it isn't important to them.