It’s funny: humans have been growing up for a long time, but somehow we still suck at it. Just look at 16-year-old Mo. He’s bright and comes from a good family, yet his best friend is Zeke (Pete Davidson), an unmotivated college dropout. So instead of readying himself for adulthood, Mo is getting a very different sort of schooling from Zeke. Actor Emily Arlook joined BUILD to tell us about the Hulu Original film, "Big Time Adolesence," and the Freeform series, "Grown-ish."