It’s not until they reach the concrete operational stage, around 6 or 7, that they develop the ability to take in other people’s perspectives, and begin to make cause-and-effect connections between events in their surroundings.

直到他们达到具体的运算阶段（大约 6 或 7 岁），他们才会培养出理解他人观点的能力， 并开始在周围的事件之间建立因果关系。