The comment below is from @Alpha Sierra, and the specific parts in red is something I've been thinking about lately.
I'm in the same boat, in that most of the people I know own defensive pistols (1-3) but his comment about people carrying, but have no interest in formal training, is what baffles me. I started shooting defensive pistols in Jan 2016, and have been very consistent ever since, which means I shoot 4-5 times a month. I got my carry permit in August of '17, and was a little surprised at how easy the course was. I'm sure they vary in quality, but mine was primarily about the legal issues that will arise if and when you shoot someone, with no time spent on how to shoot. At the end, you shot the state Qual, which is simply three rounds of 12-shots, and as long as they were inside the borders of the silhouette target, you passed, which is scary in itself.
In Dec 2016, my wife and I both did a full day Intro Pistol course locally, which was our first time doing any formal training. I've done two private sessions with a local trainer, and shot in two IDPA matches, and did Gabe White's PSS class a few weeks ago. After this amount of training I feel pretty confident in my skills, but I realize it's just a good foundation to work from.
Now that I've become a shooter, I'm amazed at how most of the gun world are simply owners/collectors. 'Owners' in that they own a gun, but shoot a couple of time a year, simply 'burning lead'. Within this class, are those who also like to buy lots of guns, but again, don't really shoot them much at all. I just find it odd/interesting that of all the people who own guns in this country, the vast majority are NOT shooters. Shooter being those who buy quality gear, and seek out formal training, and strive to become more skilled, and can actually perform during timed drills, and other ways of being tested.
The issue of cops not being gun guys (shooters) is another facet of this picture. I have several LE friends, and sure enough, only appear to shoot for annual Quals.
When my wife did her carry class, there was a woman there who had never shot a gun before, but bought one right before the class, and learned to shoot it for the qual. Now, that is scary!
Although I can't remember specifically, I think my jump to 'shooter' was hanging with a buddy I met while training BJJ, a Ranger, who showed me a thing or two about how to shoot better. From that point on, I began to get back into shooting (other than hunting rifles & shotguns), and I haven't looked back, and slowly but surely, getting my wife more and more involved, and more recently shot her second IDPA match; she was sold after the first time!
Sorry for rambling on, I guess the question becomes, what was it that made you progress from a 'gun owner', to a 'shooter'?