Ok, please get me the verse that suggest these incest stories & prostitution and I'll explain it to you. I don't know what exactly you're talking about, so I'll have to look at it first. Also, Does god want children to know about these illicit acts happening in this world? Why not. Its better to prepare the children for the coming consequences of wrong behavior and acts. The stories in the bible have a lot of symbolic meaning in life. We learn from them. Your children should be aware that they are in a difficult harsh world.