There are various factors that you can look into to be able to understand why most teens rebel against parents. You may want to start from within the house and look at the relationship between the child and the parent. You will also look into other factors like the daily provisions. If the parents are too strict or do not provide some of the basic need, there is a likelihood of there being a rebellion between them. You can check out http://www.allpsychologycareers.com/topics/rebellious-troubled-teenagers.html for more details.
It's mainly because they are at the age when up until 150 years ago teens got married, had their own land, and had children at 14. So we naturally want to be on our own and be adults when we're still teens.