You are an adult when people stop caring for you and you start caring for other.<p>There is a transition when people stop caring for you and you care for yourself but for no one else yet. We call this teens.<p>Call it what you want, it&#x27;s not really age dependant. We have simply put words on psychological changes and tied them with age.<p>Some people become adults at 12 years old. Other at 40. I&#x27;ve met &quot;adults&quot; that are only tall children and children that are short adults.