development ends at about what age?

Development is a continuous process that occurs throughout a person's life, but certain aspects of development can be considered "complete" at different stages.

- **Physical development** often stabilizes in young adulthood, around the age of 20.
- **Cognitive development**, including aspects like reasoning and problem-solving, may continue to evolve well into a person's 20s or even 30s.
- **Emotional and social development** also continues throughout life, as people gain experiences and evolve their understanding of themselves and their relationships.

So while certain types of development might be considered complete by around 20 years old, overall development does not end at any specific age and can continue throughout one's lifetime.