Theory: Why does crime happen?

In my opinion, crime happens for numerous reasons, all depending on the person. For example, there are minor crimes, and there are major crimes. There are three major reasons people commit crimes, opportunity, disire and ability. There are so many theories on why crime happens, and here's mine.

 There are different consquences for each crime, but they are still crimes. Sure, it's not that bad to go 5km over the speed limit, because hey, i need to get to work faster. Sure it's okay if i j-walk across the street because no come will pull me over for that. But is it okay to murder someone? To kidnap someone? I personally don't think that crime is not something you are born with in your head, to me crime is something that happens if you lack or need something in your life. I think it also has to do with the environment you are brought up in.

Minor crimes happen when you are say, in a rush, in a time pinch. Minor crimes are more convenient, and people think that hey, it's not that big of a deal. Yes, it's still a crime and yes there are consequences but to everyone in the world they aren't a big deal because they all still continue to do it.  Major crimes happen in my opinion because of the world each individual person. If you take a look at your "Typical" murderer, pretty much all the stories are the same. A violent childhood, abusive parents, sexual abuse, parents abusing other parents. We narrow murderers out to just be messed in the head. I am not saying they aren't, but i don't think it is entirely their fault. The things in life they you grow up to and see make or break who you are today. Some people turn to the life of crime, and some turn to the life of good. In the end, you decide where your life is going to go, you choose all of your decisions.

To sum all of this up, crime is crime, major or minor, crime happens because of the lack of self loath in yourself, the lack of morals, not having a stable family or friend environment. It happens it you have oppurtunity, desire, and ability.  You are either going to choose a life of crime for yourself, or you are going to decide a life of good. In the end, you decide your future and you make your own decisions, make them right.