[...] where I live it's almost impossible I go into a real fight. Why? First, because I don't work in an environment where it could happen more often (like being a LEO or a bouncer). Second, because if someone attacked me, there would be 0,1% chance my best option would be fighting back.
Why would ever someone attack me? Where I live, there's almost one only reason: to rob me. But where I live a robber would never attack me without circumstances that would put him in great advantage like: 1) the assailant has a gun; 2) he's got me alone against him and his partners (even so, rarely they would be unarmed); 3) there's a fragile and beloved one with me, like my wife or my daugther. Why would I ever, in such situations, choose to risk my life and/or other people's lives instead of only giving my money and going back home safely, after it's over? It's a very complicated choice, and there are many variables involved.
So I do believe fighting is an option, but it's the last option. Seriously, if you live in a hard environment, maybe you should buy a gun (anyway, you have to understand fully the responsibility of having one). Furthermore, self defense begins much sooner. Start watching out for your back when going on the streets. Avoid going out alone and walking around dangerous places (it many times depends on what time it is). Beware of the surroundings, trying to detect people with bad intentions. Try to walk in a way you don't look like a convenient target. Remember women and children are the favorite targets of assailants, so you have to take particular care with your loved ones. A person concerned with self defense maybe should try to learn to have how to talk to an agressor, how to avoid a fight with using words (example: not to stimulate or increase an agressive response from another person). One more thing: we have to remember that an agressor could be much more prepared to deal with stress over violent situations than a martial artist, once the first can already be used to deal with alike situations, while the later is used to train in a safe, controled area.
We have to remember that martial arts were created in a reality totally different of ours today, and in that time it was immediately meant to be used as self defense -- and they were more useful, because there weren't or there were not so many fire guns like today.