Welcome to Why Wonder? Simple Sex Ed, Three Ways to Talk to Your Eight Year Old About Sexual Education! The three topics we're talking about today are: Read them books, Make the most of the opportunities that you have around you, and Ask them what they know! This conversation is a big deal because we're not used to talking about sex ed with our kids. But remember, sex ed isn't about teaching kids how to have sex. It's about changing bodies; their changing bodies, and all the things they will go through.