Explaining Disney+ To My Niece

My niece is a movie-obsessed 6-year-old who loves superheroes and princesses, not necessarily in that order. For literally her entire life - at least the years of her life she actually remembers - Disney and Netflix have gone hand in hand. For example, a not small portion of her 2018 was devoted to dancing along with Baby Groot in Guardians of the Galaxy 2 and pretending to be Valkyrie while watching Thor: Ragnarok. She did all of that by streaming those movies on Netflix.

Disney's new streaming service, however, is going to completely change the equation in a way she's ...