It is absolutely normal when children quarrel with their parents. It would be rather strange if they didn't. The cause of arguments is very simple: parents are older than children. The difference of age is the main cause of troubles. Parents belong to different generation than their children. That is why they are not able to understand the needs of their children. On the other hand children are not able to understand their parents. Moreover, the argument time is usually connected with adolescence of teenagers. I don't need to say that this is the age of the hormone - storms. The children don't want to be treated as children any more and parents cannot understand that. In my opinion the arguments are less intense in the families where teenagers can choose what is wrong and what is right, of course with parents as guardian angels. Nevertheless, the quarreles are inseparable part of human nature and arguments with parents are inseparable part of teenager's life.