You may throw out a lot of good stuff that is worth keeping. Your parents got their way of doing things after long, and sometimes painful, experience. They want to save you from this pain. Religion tells us why we are here and what our future will be. It's a set of beliefs and standards that plenty of people have fought and died for.
Faith explains life and how to get the best out of it.
That's not to say that everything in religion is good. Whenever you have human beings involved in something, bad things can happen. The catholic church has a built-in guarantee that protects it. This protection is given by our creed and the teachings of the pope and bishops. They got this from God.