You just gotta let a kid have his life

Where do they hear these things? I've heard Noah say this a few times now and it always cracks me up. Mom, you're not letting me have my life. You just gotta let a kid have his life.... huh? You're 6. That's your life. The comment is usually made when Noah is not allowed to do something that he wants to do. In this case, there was a toy at Fry's that he really wanted to try out. And I said he couldn't b/c it wasn't working.