Fantasia Of The Unconscious by D H Lawrence Chapter 8 Page 16

Spontaneous distaste should take the place of right and wrong. And least of all must there be a cry: “You see, dear, you don’t understand. When you are older — ” A child’s sagacity is better than an adult understanding, anyhow.

Of course it is ten times criminal to tell young children facts about sex, or to implicate them in adult relationships. A child has a strong evanescent sex consciousness. It instinctively writes impossible words on back walls. But this is not a fully conscious mental act. It is a kind of dream act — quite natural. The child’s curious, shadowy, indecent sex-knowledge is quite in the course of nature. And does nobody any harm at all. Adults had far better not notice it. But if a child sees a cockerel tread a hen, or two dogs coupling, well and good.