Lower violence rates period? Or lower gun violence rates? Don't violence rates vary quite a bit from country to country? For example, parts of Central America

Lower violence rates period? Or lower gun violence rates? Don't violence rates vary quite a bit from country to country? For example, parts of Central America are terribly violent. I'm also not saying that TV is the sole contributing cause. But that, I just wonder if cops are inadvertently affected by growing up watching how cops in TV shows routinely handle cases. For example, a few months ago in Florida, cops got in a shoot out on a busy freeway and used bystander vehicles for cover. Many were horrified, suggesting the cops should have let the criminals flee, rather than engaging in a shootout using civilian vehicles as cover. But, how many TV shows and movies show cops ignoring bystanders. Could it be that some inexperienced cops inadvertently slip into doing what they've grown up seeing in movies and TV shows? I can't prove it, but I've just wondered if that's what's happening.