Overthinking of High School Cheating

I feel like teachers or parents are always trying to find some deeper meaning behind cheating and why kids do it, but I feel like there is a much more simple answer to this question that people have been overthinking for quiet some time. Why do students cheat? The answer is simple: because they can. I think the ability for a student to cheat depends absolutely 100% on the teacher. If the teacher is very strict about homework and tests and constantly has her eyes peeled for cheating students, they will be able to find the cheaters every single time. In classes like this with these type of teachers, it is practically impossible to get away with cheating in their class. In situations like this, the risk is way too heavy to make the cheating worth while. On the other hand, if the teacher is either lazy, oblivious, or laid back, cheating now becomes a viable option because the risk just isn't there. Yes, I think that a student considering cheating is based mostly on their own personal integrity, but for the cheating to actually be carried out is 100% on the teacher.