I'm older - 62 - and consider myself a "revolver guy" as well. My current carry is a Smith Model 36 J frame snub. I also have the 3" 36 . . . plus K frames, Rugers, Colts, etc.
What it boils down to is "practice". If you don't practice with your carry . . you aren't going to be able to hit your target at SD ranges. I once had a Colt 1911A1 - pristine that was brought back by a WWII Navy Pilot. I could'd hit a barn with it if I was standing on the roof and pointing the pistol down - but that is me.
I do practice reloading my 36 as that's part of the SD "drill". But . . . I will soon be switching to a semi-auto. Why? Answer is simple . . . capacity. Plain and simple. Why? Because I feel more secure with more rounds and I have also had training on them including clearing them, switching mags. etc.
I used to feel secure carrying a wheelgun with five in the cylinder. Not anymore. I winter in AZ - about 40 miles north of the border. I go into a city every so often to shop, etc. While we avoid bad areas, etc. . . . there is gang activity. If we are traveling out in the boonies where the roads are not well traveled and happen to have a flat or break down, I want a little more "fire power" . . you just don't know who or what will happen along. With the drug activity and smuggling, the "bandits" who roam to rob the smugglers, etc. . . you are not talking a "single bad guy". Most seem to think that a SD situation will involve only one "perp". Not so true anymore . . . and those people, if armed, will probably not be armed with a wheelmen . . they'll be armed with something that can spray many rounds.
Part of SD is being aware of your surroundings. It's about being aware of what and who is around you if a situation should escalate. One class that I took, in which I got excellent training with semi-auto handguns, was not only about "shooting skills" . . but scanning as well. If your eyes weren't "working" the area and scanning for any additional "perps" . . you got hammered by the instructor. Hand gun "malfunctions" were set up and the training was to get you to "react" . . not "think about" the solution so you could clear your weapon and keep firing.
We all hope that we will never be put in to a situation where we have to draw or use our weapon if carrying. What a person "carries" is their decision and if they choose a revolver or a semi-auto - it's their choice. Just don't don't become so overly confident with whatever you acre carrying and think that it is 100% reliable - maybe yes . . maybe no.
The other day, I read a post that a fellow put up saying he was going to carry his .357 Ruger New Vaquero as his CCW . . . the .357 was a good cartridge and he knew he could "handle" whatever came along . . single action or not. He just might be able to . . . . if he comes face to vance with a bad guy who is also armed with a single action revolver . . . but he'd better hope that it is just one guy and when he draws, he doesn't panic and try pulling the trigger without cocking the piece because he is also used to shooting a SA semi-auto. And, I hope he plans out what he is going to do if two or three come at him from different angles. He just might have a major problem if one or more of them are armed with high capacity double stacks?
I'm not saying one is better than the other (revolver over semi). I'm just saying that we all have choices and a person needs to select what fits their individual situation the best that makes them feel the most secure.