Goose, this is real, not a comedy.

I have to agree with the general opinion here - this is mainly bad parenting, but its only because they have let it escalate to such a scale. It may have been startedout with the girl eating extra 'snack's without her parents knowing - Eating them at school, or while her parents were out of sight.
You can not pin this entirely on the parents, as some people appear to have done. She must have done something greedy to start this off. She could have asked her parents for a few different meals, if eating a junk diet is what made her fat. She has to bear a portion of the blame, and so do her school and community.
Locals should have stepped in at a certain point and offered to help. They could see that this girl was suffering, and they let it happen.

This is just an example of something that is wrong with our WORLD, not a few people.