Always go with the answer that makes the most sense with least assumptions.
My little but prob wrong Conspiracy theory: The UN decriminilalized sex with kids above 10 in an effort to increase fertility rate. They know too much migration will tilt the balance against them and they need to maintain Progressivism long run. Children are an easy target for indoctrination and no amount of empowerment will make them independent. May as well impregnate young teen girls early to keep up in demographics.