An HIV-positive man stated he was paid to have sex with children in order to complete initiation rituals, was arrested in his home country of Malawi after the president ordered it. The U.N. could have (and should have) stopped this abuse - their role is to uphold peace throughout the world, and one way that they can do so is by stopping and preventing cases of abuse.
The UN can work harder to police and these kinds of crimes in order to prevent. These practices are horrible and need to be stopped. They can enact sanctions against people and places that allow these kinds of practices. They can police these kinds of things as well so that it stops.
I think this is an example of how we have taken our individual rights as people to an unhealthy extreme. As humans, we have a responsibility to help and protect other people, especially those who cannot protect themselves. Governing bodies should be able to step in and stop practices that deprive children of their basic human rights like health and safety. When it comes to harming another person, I think it is more than right and fair for the governing body to take charge.
Part of the U.N.'s role is to protect children against violence. Initiation rites that have often been ongoing for centuries need to be challenged and changed by people like the U.N. working with tribal leaders to explain why and how these types of traditions are dangerous and harmful to the children.