Is a 20 year old an adolescent?
Adolescence now lasts from the ages of 10 to 24, although it used to be thought to end at 19, scientists say. Young people continuing their education for longer, as well as delayed marriage and parenthood, has pushed back popular perceptions of when adulthood begins.
Are 20 year olds kids?
No, childhood ends as adolescence begins. Around 13 years old is already a teen. 20 could be considered a teenager from a physiological POV, considering the frontal lobe isn't fully developed until around 25. But once you're 18, you're considered legally an adult.
Are people in their 20s adults?
People don't become fully "adult" until they're in their 30s, according to brain scientists. Currently the UK law says you become a mature adult when you reach the age of 18. Scientists who study the brain and nervous system say the age at which you become an adult is different for everyone.
Why is 21 the age of adulthood?
Because that's when people get to vote. Suffrage has long been tied to adulthood and the age of majority in the United States. Before the passage of the 26th Amendment in 1971, 21 was the minimum voting age in most states—and thus served as the age of adulthood in most areas of law.