I’m 29 years old and going through puberty. My goatee is humble but hopeful. A few days ago, I got carded trying to buy a lighter (which means they thought I was younger than 18). But I’m also an heir to genetics that had my parents completely silver-haired by age 40. So, while I have a pubescent mustache, I also have half-gray, long wavy locks that make me look like a late-20s Poseidon. If this feels like a riddle, apologies. A lot of my life has felt that way, so you can deal for a little bit.