One’s attachment history serves as a foundation for identity formation, which is a co-construction with significant others rather than a solo accomplishment.

Evidence

Attachment, Identity, and Intimacy: Parallels Between Bowlby’s and Erikson’s Paradigms (ResearchGate)

Categorization

• corroborated: 2 independent passages support this claim
• XREF: connects to: A person’s identity is deeply tied to their birthplace. — Crews, Harry, A childhood the biography of a place, 44; Place identity is a substructure of the self encompassing cognitions, emotions, and behavioral tendencies related to socialization with one’s physical environment. — The Mediating Role of Place Attachment Dimensions in the Relationship Between Local Social Identity and Well-Being; Identification is socially motivated identity-building, whereas attachment is a more personally motivated bond based on security and personal history. — Identification and Attachment in Consumer-Brand Relationships (+6 more)

Related

• Identification is socially motivated identity-building, whereas attachment is a more personally motivated bond based on security and personal history. (similarity 0.89)
• Infant attachment to caregivers forms the foundation for later self-concept and identity development. (similarity 0.84)
• Place identity is a component of self-identity, and place attachment precedes the formation of place identity. (similarity 0.82)
• Place identity is a substructure of the self encompassing cognitions, emotions, and behavioral tendencies related to socialization with one’s physical environment. (similarity 0.81)
• Learning to trust is steered by the developing self-identity (similarity 0.79)

Broader Connections

• Trusting others and trusting oneself develop together. #expands (0.78) — Anthony Giddens, The Consequences of Modernity, 231
• Individual motives become social only through forms of mutual interaction #expands (0.75) — Georg Simmel, on individuality and social forms_…, 194
• Self-identity is now a reflexive project conducted amid abstract systems #complicates (0.72) — Anthony Giddens, The Consequences of Modernity, 295