Why does the Giver pressure Jonas into watching the new child's release?

Jonas has been with the Giver receiving memories for months when Jonas asks him if he ever thinks about release. They discuss the issue for awhile and Jonas finds out that the Receiver can never ask for release unless there is someone to take his place. Along those lines, Jonas explains that he was thinking about release because his father had scheduled one for a twin that very day. This discussion opens the way for...

Jonas has been with the Giver receiving memories for months when Jonas asks him if he ever thinks about release. They discuss the issue for awhile and Jonas finds out that the Receiver can never ask for release unless there is someone to take his place. Along those lines, Jonas explains that he was thinking about release because his father had scheduled one for a twin that very day. This discussion opens the way for the Giver to tell Jonas that releasing people means killing them. In chapter 19, it says that the Giver "firmly" tells Jonas that he should watch the recording of the Ceremony of Release for that twin. He explains that Jonas needs to learn everything eventually, as follows:

"Jonas, when you and I have finished our time together, you will be the new Receiver. You can read the books; you'll have the memories. You have access to everything. It's part of your training. If you want to watch a release, you have simply to ask" (147).

The realization that "release" means death is a deal breaker for Jonas and he threatens never to go home again. The Giver must have known that Jonas would not agree with the practice of killing innocent people at will. He probably made Jonas watch the twin die so that he would be fully informed before completely taking over the duties as the Receiver. Also, if Jonas is fully informed, the two of them could implement a plan to stop the community from continuing to live and to kill like they've done for so long--and that's just what they do. Because Jonas finally understands everything that makes his world function, he and the Giver decide to break it down by sending Jonas away. By Jonas leaving, all the memories would be released upon the people, forcing them to understand what they are really doing and want to change.