I have an eight year old and no matter how many times I explain the concept of sarcasm he just can’t get it. Even seconds after explaining the concept, I test him with an absurd statement and he takes it literally. I have made repeated attempts to teach him and he just doesn’t get it. Their brains are still developing
Really? I've been doing the Futurama "Good news, everyone!" thing with the kids for quite a while now and they twigged on pretty much immediately.
Obviously more subtle sarcasm is harder to pick up on, but even adults struggle with this, eg. Americans having a hard time with British "bone-dry wit".