"What I think MitchellCT was saying is to keep on progressing and not worry about what good enough accuracy is. I totally agree with anything I do in life to always push myelf to be better. "
My point is that pushing yourself very hard to become an expert at drawing a gun and getting off a fast first shot is fine - as a hobby. It has less value as a way of keeping yourself & your family safe. And by the time you are doing force on force training, you've left self-defense behind and are doing it for the fun or for the challenge.
Hobbies are fine. Everyone should have one. The money I'm spending now on hay for the horses would buy me quite a few bullets, but it is my hobby.
Some realistic training has a LOT of value. Can you pull your gun without snagging on your clothes? If a woman plans on purse carry, can she get to her gun in less than 60 seconds? Can you accurately point your gun, and what does that take? I cannot do it well from hip level, and raising my arm is required from just about anything more than an arm's length shot. Otherwise, my first shot is 50:50 tops - so I plan on raising my arm, room permitting, and taking a half-second to stabilize the gun. Not to use my sights fully, but it takes a finite time to stabilize the gun when I raise it. I know because I've practiced it. And it costs me 1/4-1/2 second more, and I've decided I'm willing to take that extra time to make my first shot count. Others may disagree, and that is fine - but I've TRIED the actions to get off a good first shot, and determined what I can do.
I carry cross draw because my right side is stiff from an injury (caused from riding horses) and I find it awkward to draw a gun from where most people carry one. I don't carry a semi because I love shooting revolvers, and I want to feel instinctive with a gun. That takes a fair bit of shooting - not 1000/week, but a heck of a lot more than 50 rounds once every 4 years!
But you rapidly hit a point where trying to get better and better at harder and harder scenarios just isn't going to improve your safety while leaving Wal-Mart and going to your car. If you ever walked thru your dark house with an unloaded gun, and tried taking shots at imagined bad guys, you will learn very fast and very finally that you cannot target practice in pitch black with normal sights. So you buy some night lights and also start practicing at times getting a shot without using your sights.
But if your hobby takes you farther, make sure it doesn't teach you the wrong lesson. Service rounds do NOT suck. Having no gun when you need one sucks, but 9mm ball ammo will penetrate, and most 9mm guns offer you the option of taking 2 shots instead of one with a 357/44. There was a thread here some time back asking for any scientific data indicating caliber has any impact. For some of the smaller rounds, the answer is yes. Low penetration means a significantly lower chance of hitting something vital. But once you get to the 9mm/38+P range, there seems to be no serious evidence. I like a high-powered 44 special, or a 357 when saving weight, but my normal carry gun is 37 oz because it is what I shoot well with.
My aunt is in her late 70s. A couple of winters ago, her 8 lb dog went nuts at 10PM. She felt uncomfortable, so she grabbed a WW2-era 38 and opened the door. Yes, she now knows not to open the door. The guy at her screen door was a foot taller than her and wearing a ski mask over his face. She stepped back, raised and cocked the gun, and said, "Run!" He did. He did not argue caliber, he did not smash thru the screen door to try to overpower her, etc. Like the time I encountered 8 guys in the desert and I had a 6-shot .22, no one got bold and brave and decided to win at any cost.
That was the first self-defense encounter she had in her 78 years. I had one 30 years ago, and none since. Hopefully I never will have another. And yes, having never thought about it before, she learned a few things. Don't open doors, and don't cock the gun unless you are ready to shoot (practice DA or change your pointing approach). Listen to your instincts. She had never taken a gun with her to the door before...
But for DEFENSE, the questions are pretty simple for most folks.
Do you have a gun? Is it loaded?
Can you get to it quickly? Can you draw it in the clothes you are wearing?
Can you point it, without relying on the sights, and put a shot into a man's chest at 10 feet or less? Can you point a gun at a man? (I add the last because I once tried pulling a gun on myself facing the mirror, and I found it quite different psychologically) Have you prepared yourself mentally to shoot a man? Can you move after a shot, or are you prepared to keep shooting if, like my aunt, you are in a narrow hall?
At that level, you are already at a point far in advance of 99% of the people. If you want to go farther, that is fine.
My oldest daughter was in the USMC. She's quite good with a rifle, but marginal with a handgun. Nor does she have the drive to go fire thousands of rounds. But she needs to carry, so she has practiced enough to figure out how to carry a gun with acceptable draw time (in her opinion). She learned she dislikes the SP101/J-frame guns, so she carries either a 10 shot 22 or a 686+. She shoots 50-100 rounds a month.
She is far better prepared than the vast majority of Americans. She is not ready to handle force on force, but that isn't her purpose. OTOH, she is probably better qualified than our local SWAT team. I'll close with a link to YouTube video taken by the team, when they shot a homeowner over 20 times while serving a search warrant. They also missed 50 times, while showing buffoonery that I think disqualifies them from carrying anything stronger than a throwing star from their ninja bags. There is no substitute for a mind when guns are involved...
Jose Guerena SWAT Raid Video From Helmet Cam - YouTube