What makes us an adult?

I think most of the teenagers or children want to become an adult truly, and they also feel like doing things which they consider that it can represent that they are really an adult. In fact, I think it’s necessary to have some indispensable elements to make us an adult. It’s not crucial that what we do can stand for that we are mature completely. And I think of some main essential ways that can help us become an adult.
First, I feel that we should be independent and responsible, and it’s also extremely necessary. Because when we become an adult, we begin to rule our all behaviors, we have to discriminate every thing which is good or bad. Sometimes I think that it’s hard to do totally, but independence is quite required for everyone.
If we are an adult, we can’t rely on our parents or others any more. Most important of all, we have to handle our difficulties by ourselves. It’s impossible that people always depend on their parents, and every child must learn to grow up one day. Also, it’s inevitable that we may encounter many dilemma or trouble which we can handle not very easily, so we have to try our best to overcome all the frustration.
Last ways to make us to become an adult is that we should get through more and more experience. Due to having some dilemma in our life, we accumulate numerous experiences, and I think that these are precious things. From these various experiences, no matter what is good or bad, we can learn many useful principles and lessons in these experiences.
In fact, it doesn’t according to our ages that whether we are an adult or not. If we can execute these main essential ways, I believe everyone can become an adult who is truly mature.