I'm comparing sizes and weights of items. I didn't say it was required. There is a limit at some point for everyone or else we would all just carry everything in our house with us at all times. That EDC commando youtube stuff is a bunch of bs that doesn't float in a lot of people's lives. I'm not saying you are overboard (I sometimes carry a similar group of items) but some of these guys mentioning carrying 4 guns? That's insanity.
Try going for a jog or riding a bike with that stuff you carry on....you'll get sick of it real quick. Try wearing all of that while wearing a shirt and tie to a business meeting in the summer. Sure it might be doable but people will wonder why you have things all over your belt and look like your smuggling bricks in your pockets.
You can only carry so much and not everyone can wear wranglers, an oversized hawaiian shirt, wilderness belt, etc 24/7. I can put those items in the pockets of a pair of sweatpants @ 3am and be out the door in no time. To carry those items you mentioned you need at least a belt...which means putting on or changing pants, possibly putting a belt on, holstering a gun if it wasn't already in the holster and then attaching those items to your belt, etc. Would you do that @ 3am if your dog needed to go out or your fire alarm was going off? Would you have all that on your if you were at the basketball court or running down some trails? I don't think a lot of people would.
Mostly I think your example was just plain silly. If you are limited to a certain total size/weight of items, then after the duty pistol with 17 rounds you fill out the other items, such as the flashlight. You don't pack two full size spare magazines and leave the flashlight at home. While walking the dog at dusk. Because you feel that the only two options are a 5 shot snub or a duty pistol + 2 spare mags. That is just plain silly.
If it's a business meeting I'll have a briefcase, satchel bag, etc, with me. Things like a pocket knife, one of the flashlights, spare batteries, even my phone, etc, can go in there.
When my dog needs to go out at 3am I open the back door and let him out. I don't even go outside. If I do go outside it is into my private, fenced, residential backyard with good lighting...and two big dogs. I can always grab a flashlight from the counter top and a handgun from the coffee table, though.
If my fire alarm was going off I probably wouldn't be worried about picking up a gun. Even if I was, an airweight snub nose J-frame would STILL be too much gun to put in a pocket (pajama pants, some without pockets at all, or gym shorts). If my fire alarm was going off I would be far more concerned with finding out why, grabbing a fire extinguisher, calling the fire dept, getting the cats/dogs round up, pulling the car out of the attached garage, grabbing the computer/documents, etc etc.
BTW: I have gone running many times with my Glock 26 on me.