I reach for subjects of possible interest: *Sugarfina. This is a new store that sells absurdly overpriced haute candy. Like, a trillion dollars for a small packet of gummy bears. Who doesn't want to talk about candy? The teen next to me rolls his eyes. "That store is ridiculous, and I would never go there." I consider the money I myself have just dropped on a Sugarfina purchase. I change the subject. *Katy Perry's new single. My teen says: "I have not listened to Katy Perry in like twelve years." So, on to Cardi B: "She's over. There are stories that she drugged and assaulted people." *Legalizing marijuana in NY. My teen: "It's uncool because the illegal drug market helps many dealers stay afloat. If we legalize marijuana, those dealers will go under, and we need to protect them." *Ted Bundy. Here's a subject where my teenager and I have common ground. "He was handsome, so he got away with stuff," says my fri...