Sex ed for adults. At this point in life, you're well aware of where babies come from. These talks on the complexities of healthy sexuality will teach you a few other.
Why do some adults speak like babies? Why do some adults baby talk sometimes? Why would a couple speak to each other using baby words and sounds?
More and more, adults are sprinkling their speech with the language of children. Young kids tend to simplify language, leaving out verbs.