I'm a parent. There are probably lots of reasons they seem over protective. When I was 13 my mother was over protective (I thought) and my kids probably thought the same thing about me and their mother. I think it only fair to hear their logic set before being too judgmental. There may very well be good reason to not allow you to ride your bike to school. I can tell you that no matter what their logic or reasons are, at 13 you are almost always going to feel they are wrong.