Another common mistake parents make is that they lie! Sometimes parents or adults believe children are too young to hear the real truth about sex, so they choose to lie or withhold information to protect them. If children find out you lied, it ruins your credibility and then they will discount anything you have to say about that topic. If your child is young, try to simply answer a question without much detail. If it wasn't enough information, he or she will ask you a follow-up question. If not, conversation finished without a big fat lie you're sure to regret later.