What are your thoughts on this article that mentions a lawsuit brought by "children" aganist McDonalds for "obesity related health problems"?

Here is the article.

Wow. You know it isn’t the children actually bringing the law suit. It’s the parents. So, the family goes to McD’s. Seven year old says, “I want a double Big Mac, a super large order of fries, a chocolate shake and a sundae and a cherry pie.”
Mom and Dad say “Sure thing honey!” and pay for it.
Then they’re going to bring a lawsuit against McDonalds because their kids are fat and unhealthy?
Why don’t they sue the grocery stores where they buy their potato chips and cookies and cakes and sugar and grease and oil (for to fry all their food in) and blame the grocery stores because their family is fat?