Erik Erikson developed an eight stage developmental model of the psyche for the full life of the human individual. Each stage has a key conflict (with both positive and negative sides), its resolution into a “virtue,” and the typical age range for that conflict.

• Trust vs. Mistrust, “Hope”, Infancy (0-1 years)
• Autonomy vs. Shame, “Will”, Early Childhood (1-3 years)
• Initiative vs. Guilt, “Purpose”, Play Age (3-5 years)
• Industry vs. Inferiority, “Competency” (or “Ability” or “Skill”), Schooling (5-12 years)
• Ego identity vs. Role confusion, “Fidelity”, Adolescence (12-18 years)
• Intimacy vs. Isolation, “Love”, Young Adult (18-40 years)
• Generativity vs. Stagnation, “Care”, Adulthood (40-65 years)
• Ego integrity vs. Despair, “Wisdom”, Old Age (65-? years)

I would think that these ages would depend significantly on cultural norms.

Further Reading:

https://en.wikipedia.org/wiki/Erikson%27s_stages_of_psychosocial_development

Erikson’s 8 Stages of Psychosocial Development

https://www.simplypsychology.org/Erik-Erikson.html

[*11.44]

<>