Elizabeth is one of several million people — so many of them teenagers — who have become obsessed with the Broadway show “Hamilton.” It is funny, if you think about it. Kids all over America are smitten by a show about a previously minor Founding Father who probably would have gotten chucked off the $10 bill had it not been for the genius of Lin-Manuel Miranda. When I was Elizabeth’s age, we all wore Rush and Black Sabbath T-shirts and sang about how Mommy’s alright and Daddy’s alright, they just seem a little weird.