Cheating students can be found all over the world today, and it's not due only to poor role models.
Many years ago, when I was teaching middle school math in an American school in Kuwait, cheating was rampant. Students believed that helping friends was obligatory, and they didn't consider the idea of passing along answers before or during a test as cheating.
The only way I was able to combat cheating in my four pre-algebra classes was to write different tests for each class and watch the students closely as they worked.
Did any students try to cheat? Yes, but I caught them. Was it more work for me? Yes, but then I knew who truly needed help and could better address the learning needs of the students.