I took about 5 minutes and did a little research and read the article carefully on this lawsuit...
In the article it states that the reform to the iOS was done after the free downloads and in app purchases occurred. Meaning they used the 15 minute window. However, it does state that the lawsuit is also going after Apple because they do not think the new iOS is good enough because the child may already be aware of the password and purchase without the parents' consent.
This lawsuit is a live and learn situation, as most are, for both the parents and the children. The parents could have used the restrictions allowed, but they didn't. The child could have known what that she was charging money, but who knows? Only the child does.
Also, I believe there would be some negligence by the parents if they allow their child to have that type of access to their credit card. I am not saying it to be mean and...hey...everyone makes a mistake, even adults, and I have heard many stories from parents about what perfect angels their children are and their children would never do such a thing or lie to them. But as it has been said, and I agree...kids will be kids. Some may not realize if something is right, if something is wrong, if something costs money or if something doesn't. It all depends on their experiences and what has been explained. Most parents probably wouldn't think to teach a child about in app purchases, or the like, because they are mostly from a different generation and do not understand themselves unless they play the game first, or something similar.
But you can bet your bottom that whether something was intentional or not there are many children who would lie about it because they don't want to get in trouble.
This is a live and learn situation, as most are, for both the parents and the children.
The fact that the issue was addressed and resolved so the situation cannot repeat itself and there are restrictions in place for parents to control what can and cannot be done does a lot to stop this lawsuit in its tracks. I guess we will just have to see whose lawyers can pull the most BS out of their butt before we will see who wins.