What I'm sure every Adolescent would love to know?

Okay, I turned 15 not too long ago. My parents aren't the kind of mushy gooshy oh my word our child has grown up,sort of people. I ask my mom if I can get a job because I really WANT a job so I can pay my own way and buy my own electric guitar and everything. Well the thing with that is, my parents don't want me to get a job because they would have to drive me all the way into town. I want to get my learners' permit, but guess what? My parents haven't taken me to get one. Dad says that I need to study before I do that. They haven't gotten me anything so I can study with it. What am I supposed to do? My mom can sure bicker about how lazy and unresponsible I am but she won't give me the oppritunity to have a job and grow up. Don't tell me I need to talk to them because every rational conversation I have with ends up with me being wrong and them being right no matter how good my reasons are. So I ask you parents and ever current adolescents out there; Why are there times when parents are so hippocritical?