Complex sentence: A 2015 article said that the majority of South Korean orphans become orphans at a young age, and the 2015 article said that the majority of South Korean orphans eventually age out of the orphanages' care when they turn 18 years old never being adopted.
Split into simpler sentences: A 2015 article said that the majority of South Korean orphans become orphans at a young age. The article said that the majority of South Korean orphans eventually age out of the orphanages' care when they turn 18 years old never being adopted.