To me being an adult is being responcable,mature,independent and becoming more on your own.Because im only 18,Im just learning how to be more indepenedent.In my opinion everyone should start learning how to become an adult around seventeen because in today society many teenagers think there an adult very young.One thing is saying your an adult another is actually being one.being independent is a way in being an adult not depending on your parents isnt a way your parents arent going be here for ever.After your parents die,you need to learn how to live on your own.