Luckily 100% of the people i know are in this situation and the society around me push the general idea that killing is always wrong no matter what. And it works.
Then yes, condition may change in third world countries
IRL when you are in a self defence situation, you are already laying on the floor bleeding profusely and/or knocked out, I'm talking from personal experience, most of the time you get sucker punched or/and jumped on or/and punched in the back of the head or/and assaulters have weapons, so unless you're heavily trained, when self defence situation happens you're not gonna protect yourself, as Mike Tyson said, everyone have a plan before they got punched in the mouth, so unless you can act on trained "instincts" you gonna get stomped on the head
Absolutely this, however, doing drills and sparrings is necessary so your body know how to move without your mind, i mean, completely untrained people just flailing and doing haymakers while those who doing drills at least can throw some straights and jabs and clinch and double leg takedown and some throws, at least i can do this automatically without thinking
Some personal experience: I've trained a little, I'm not a professional fighter. All my very few fights have been street fights. I've been trained how to takedown but I can't find enough thought to actually do it fight. The absolute best thinking I've ever done in a fight was remembering my boxing hits and even that was more of a flash than a rational thought. Honestly the thought "RUN!" comes up more often in a fight for me than anything actually useful to fight.
Yes) this! You train for exact that flash of memories when your body do the job without mind intact, body just by reflexes should act on self defence, because everyone's mind screaming to run and muscles are becoming like jelly when time to fight comes, i mean every country trains their professional soldiers exactly for this, so their body would work/fight properly without mind intact
My point is, in most self defence situations is kill or be killed, better run if you can of course, but that's if you can do it at all, basically it's not you who decides what to do in most of self defence situations, but situation you're in