People have carried stuff in their pockets since there have been pockets, and have been carrying small handguns in those pockets since we’ve had guns that fit there.
One problem is that the gun can shift ots position around so you seem to have to chase the gun to grab it for the draw. We want the gun to be stable. We don’t want it to fall out of the pocket. And we certainly don’t want the pocket holster to come out with the gun: the only way that will save your life in a gunfight is if it makes your criminal opponent laugh so hard he forgets to shoot you.
Enter the Holster Jack, a brilliantly simple solution that uses a composite rod in the front of the pocket holster to not only stabilize it in place, but to keep it from coming out with the gun when you draw.
I tried one for a week with a J-frame Smith & Wesson short barrel revolver, and had no problems with it. Not a bad deal at all for forty bucks. Go to https://holsterjack.com/ to see how to order one that fits your chosen pocket handgun.