I don't like the word typical, as I see nothing typical in a gun fight.
what does a typical gun fight look like
what does a typical bad guy look like
whats the typical location of bad things happening
whats the typical day for bad things to happen
whats the typical .....
don't be expecting a typical gun fight , by a typical bad guy, at the typical location on the typical day.. expect the un-typical and train for anything and everything.
Actually, there are answers to all of these questions. It is a very interesting point you raise. This would be a discussion under the subject heading of sociology which deals in generalities, things that are "mostly true". Some people simply do not accept that paradigm at all. We call them NAXALTS, because they always say,
"Not All X Are Like That!"
Sometimes a naxalt has to be excluded completely if he won't be quiet enough to let the class discuss sociology. Don't waste your breath on them.
Don't take offense please. I am a teacher after all, and we don't know each other at all, so I do not know if you are the typical person who would take offense and feel like I am insulting you
There are several types of interpersonal violence with enough commonality that you can actually prepare for them.
Your point has validity in that the people are in error about the types of violence they are discussing. We have been informed by movies and by anecdotes which have misled us. The "typical"

description of interpersonal violence is just wrong.
Armed predatory assault by a stranger is a particular type of violence.
The typical predator can be recognized by certain typical behaviors that are so common that you can learn to prepare for it all. You can also recognize the typical locations for this kind of violence which have so much in common that they have been type classed as "transitional spaces".
I think maybe the best way is for both ideas to be understood.
Get ready for what is overwhelmingly probably going to happen! (My advice)
Get ready for nothing to go the way you expect! (Your advice)
I appreciate your contribution here!
BrianD