The way it has always been

So I read Deuteronomy 6 today.  I found it very interesting in the response they are to give their children when they ask what do the statuets mean.  

 20"^(X)When your son asks you in time to come, saying, 'What do the testimonies and the statutes and the judgments mean which the LORD our God commanded you?' 21then you shall say to your son, 'We were slaves to Pharaoh in Egypt, and the LORD brought us from Egypt with a mighty hand. 22'Moreover, the LORD showed great and distressing signs and wonders before our eyes against Egypt, Pharaoh and all his household; 23He brought us out from there in order to bring us in, to give us the land which He had sworn to our fathers.' 24"So the LORD commanded us to observe all these statutes,^(Y)to fear the LORD our God for our good always and ^(Z)for our survival, as it is today. 25"^(AA)It will be righteousness for us if we are careful to observe all this commandment before the LORD our God, just as He commanded us."[BibleGateway.com]

They are to present them the history.  The commands are "for our good always"