Child-Adult-Old

A child is an adult when he/she starts contributing to his society instead of depending on it. And by giving back to the society it does not mean just do reachout or join in a environment club in your school. That’s part of it but when you are a adult you do your duty independently. A child becomes an adult generally after graduating from university and starts doing a job. An adult means doing your duty in society properly and sincerely. When an adult becomes mental and physical aged and can no longer perform his/her duty they are considered old and aged. Old people are generally respected because they have done their duty.