I have conflicted and mixed feelings about this, which I will keep to myself, but one thing that stood out was the statement, "Kids who reach or exceed the 120th percentile are considered to have severe obesity."

That's a physical impossibility. This means that 120% of kids are below them.

I really can't figure out what they meant to say.

I also question the basic validity of basing treatment thresholds on where other people are at. This is basically saying that if Charlie has a certain BMI, that whether or not his health is in sufficient jeopardy as to warrant medical intervention depends on what everyone else's BMI is. That makes no sense. So if everyone else gets fatter, little Charlie is somehow less at risk of obesity-related complications, while if everyone else gets leaner, hit risk level goes up?