Complex sentence: In the 1970s, about 55% of Kabul's population was educated without materials or proper learning resources to get a proper education but nowadays most of the young children are sent to work by their parents to support their living costs.
Split into simpler sentences: In the 1970s, about 55% of Kabul's population was educated without materials or proper learning resources to get a proper education. Most of the young children are sent to work by their parents to support their living costs.