You legally became an adult when you turned 18. But you know you weren't CLOSE to mature enough to actually consider yourself an adult, right?
Well . . . scientists agree. A new study out of Australia found that our brains and bodies don't ACTUALLY get all the way out of adolescence and into adulthood until we're 24.
So that's REALLY when you become an adult.
And the researchers say it may be why people are waiting until they're older to get married, have kids, or even move out of their parents' house.