The through line for almost all the stories that I have heard about weight loss surgery is like a deep and profound sadness. That even people for whom it is successful report this incredible sadness at knowing now how differently people treat them now that they're thin. So these guidelines recommend bariatric surgery for kids whose BMI is over 35, which I don't know if that's like the size of a child. The evidence on this is also kind of surprisingly thin, honestly, for how long bariatric surgeries have been around.