Because we can’t help but make choices in those areas. Do we follow one of the world’s established religions, or do we live our lives without religious considerations? How do we decide what’s right and what’s wrong? How do we know the things we know? What is the best way to govern a country?
These questions are hard to escape. We can ignore politics, but politics doesn’t ignore us. We have to decide what is right to do. We claim to know certain things. I once say a bumper sticker that said “Sleep in on Sunday and Save Ten Percent.” Should we do that, or do we live in accordance with the teachings of a religion? Not to decide, is to decide. Our actions speak for us, even when our words do not.