You can cheat on tests, shoplift in stores, and pretty much nothing will happen to you.
When teachers can’t give failing grades to students or kick them out of their class for blatantly breaking the rules, this is what happens.
Meanwhile I took a language exam in Japan last weekend where a bunch of people got kicked out of the room - instant fail - for using their phone during the break when it was expressly disallowed (we had to put it in a sealed envelope that we couldn’t open until the exam was over, break included). Given reports I’ve heard, I suspect at least a single digit percent of test takers failed the test this session simply for breaking this rule.
From the test takers who got kicked out of the room and tried to negotiate (unsuccessfully) with the proctors, it was instantly obvious who came from cultures where the consequences of rules are carried out and who didn’t.