Professional training is simply beyond the means of many of those on a fixed income, who can afford a single gun and a hundred rounds a week to put through it. I dare say the majority of pistol shooters are self taught, myself included. Learning to shoot correctly mattered to me, so I sought out the information I needed to become a good shot, and I worked hard at it firing many thousands of rounds of .38 Special (I started handloading when I began handgun shooting) then later did a bit with pistols. As a result, I pretty much consider myself competent in most circles, although I don't engage in competitive shooting. Today, finding the information you need to become a good shot is much easier due to the internet and the various DVDs that are available; the hard part is finding the information that fits the style of shooting you wish to learn, particularly the basics which form the foundation you must build from. Everything today seems to be slanted towards personal defense (which is good) or towards a game (which is okay) but both can be lacking in information that matters to a novice shooter.