If we must develop such a capacity at an early age, two potentially large groups are at a cruel disadvantage: those whose early years are spent in fractured conditions of caprice and neglect, as in the case of many children of American inner-city communities wrecked by poverty, drugs, and broken families, and those who have suffered substantial abuse in their early years from the very persons who might have provided the first experience of trustworthiness.

QUESTION: What specific developmental windows determine whether trust capacity is lost permanently?

Russell Hardin, Trust and Trustworthiness, loc. 541