“One of the besetting sins of parents is to assume that little children (toddlers) know far less than they actually know. Little children are emotionally, spiritually, and intellectually sensitive. Inability to articulate what you know is not the same thing as not knowing it. Many parents have little children who cannot form a question and don’t know how to say ‘trash can, pick up, floor,’ or ‘napkin.’ But at the same time, if the parents said, ‘Billy, will you pick up that napkin from the floor and put it in the trash can?’ They can trot off immediately and do it. The knowledge here is doing, not saying. In a similar way, children register if their parents are quarreling, worshipping, feasting, or laughing. The fact that they may not be able to express how they are sharing in the event doesn’t mean they are not full partakers.” (My Life for Yours, p. 128)
You Think Too Much! 
Is the sin not knowing what children know, or the parent’s arguing itself whether they know it or not. I can’t see how not knowing what they know when they can’t even express what they know could be a sin. I mean, I get what he’s saying, but it isn’t accurate. He’d probably be more picky on me than I am on him. Is it a sin to say something is a sin that isn’t a sin?