I set you (and others) up for this argument. I have highlighted the reasons in your own post. "Kids, teens, tweens" is my argument and it is quite solid. The parents don't want to ride DD/DC.
"Kids, teens, tweens" don't feel that they can make mistakes that could turn deadly. 35'ish and older come to realize that we all make mistakes and friggin yikes if one of these young operators make one on my time on earth. That is why many people don't ride such an intense ride as this. Capisce?