Final answer:
During late adolescence, individuals develop intimate relationships, which are strongly linked to their psychological and emotional development. A solid sense of self-identity is crucial for establishing these relationships successfully, preventing loneliness and emotional isolation.
Step-by-step explanation:
In late adolescence, typically between the ages of 14 and 21 years, individuals develop intimate relationships with others, especially with persons of the opposite sex. This developmental stage is marked by an increased awareness of sexuality and is the time period where many experience their first romantic relationships. These relationships often become more significant than other peer relationships as the individual moves towards early adulthood.
Psychosocial development, particularly as described by Erik Erikson, emphasizes the need for a strong sense of self before entering into intimate relationships. Those who do not develop this may face loneliness and emotional isolation. During late adolescence, individuals also start to separate themselves emotionally from parents, with peers and romantic partners growing in importance.