It’s my observation that most people (not all) will never put in the time to get to a basic level of defensive handgun proficiency.
As a pilot, I often see people get excited about flying. They start lessons and then fade away and stop because it’s a lot of damn work to get the license.
It’s the same with shooting.
Yes, I can have a complete beginner in the x-ring straight away (I did this recently with a friend who was 40 and never shot a gun before), but the person will not be able to defend themselves with a handgun.