I strongly disagree. How many people after getting the shot actually look at the data to check the exposure? I think those who are really keen should really play with the shutter speed and aperture to get a feel of what they actually do.
Digital is free nowadays and you can make as many shots as you need to achieve that. In film day, we had to wait for the negs to be processed then check the negs to see the density because the labs will actually correct the prints also. Otherwise, would have to spend a bomb on slides.
After that, then can progress to aperture priority or shutter priority. Most of the time, people who understands the difference between controlling exposure with shutter speed and/or aperture would also know which they would like to dictate and which they would like the camera to adjust for them. In digital, there is one more degree of freedom, the ISO sensitivity. Again, what is the effect of changing that...
Manually changing exposure settings for beginners also slow down the photo-taking process, so they can also work on the composition aspect. Many times, because digital is free, people tend to just shoot without thinking, without planning, without considering what it is that they want to convey to the audience.