Final answer:
Failing to develop a strong sense of identity can lead to difficulties in the development of intimacy and a sense of integrity in late adulthood.
Step-by-step explanation:
In Erik Erikson's developmental stages of life, failing to develop a strong sense of identity can lead to difficulties in the development of intimacy.
In adolescence, individuals face the task of identity versus role confusion, where the main task is to develop a sense of self. Adolescents who do not make a conscious search for identity may have a weak sense of self and experience role confusion.
In late adulthood, the challenge is to achieve integrity versus despair. People who feel proud of their accomplishments and have a sense of integrity can reflect on their lives with few regrets. However, those who are not successful may face feelings of bitterness and despair.