The Giver- Keeping Society "in the dark"

There are certain measures or rules that were made during the decision of Sameness that made it so people did not find out the lies they were living by communicating with others in the society. One rule is to not ask rude questions. For instance when Jonas is riding his bike with Fiona to their training she does not ask him about his because it is against the rules to ask rude questions. And Jonas is not allowed to speak of his training because his page of rules, along with being the Receiver, tells him he is not. "She pedeled forward silently, and he knew that she expected him to tell her why. She expected him to describe his first day of training. But to ask would have fallen into the category of rudeness." (pg. 90) Another rule that Jonas was given is "you are prohibited from dream-telling." (pg. 68) This is beacuse after having experienced all the memories that he is given, he will have much more confusing, detailed dreams than the rest of his family, and he is not allowed to release to them the truth about the lies they are living.
Another example of keeping the society "in the dark" is Jonas's father lying about the releasing ceremony that happens when releasing an infant.
"No, I just have to make the selection. I weigh them, hand the larger over to a Nurturer who's standing by, waiting, and then I get the smaller one all cleaned up and comfy. Then I perform a small Ceremony of Release and-' He glanced down, grinning at Gabriel. 'Then I wave bye-bye,' he said, in the special sweet voice he used when he spoke to the newchild. He waved his hand in the familiar gesture... 'And somebody else comes to get him? Somebody from Elsewheres?' 'That's right, Jonas-bonus." (pg. 136)
Jonas's father lies when he says "that's right Jonas-bonus", because the newchild doesn't get sent away to somebody else. He gets thrown down a garbage chute after being killed. Therefore, it seems to be that in Jonas's fathers rules, when he was assigned to be a nurturer, it said 'you may lie,' just like it does in Jonas's. When people's rules say this, it is most likely so that they can keep secrets from the other members of the community so that they do not know what happens in other assignments in the community.