I think that there is no specific period of time or age when teens become adults. It's possible to become an adult in any time of life, because it's doesn't depend on your age, it depends on your "self-creation" and "self-realization". Speaking in terms of adulthood, I want to add two more very important aspects which are also required in order to become

Some common words found in the essay are:
Peter Goddard, , becoming adult, becoming adult act, adult act, society changed, adult usually,
Approximate Word count = 475
Approximate Pages = 2 (250 words per page double spaced)