Washington state’s legalization of marijuana last week was a professional triumph for Alison Holcomb, a Seattle attorney who wrote the law. But the legal victory created a personal dilemma: how to discuss the no-longer illicit drug with her 4-year-old son. “He’s a sponge right now, and I don’t know if he’s yet at the age when I can have a meaningful conversation with him about it,” says Holcomb, the drug policy director for the American Civil Liberties Union (ACLU) of Washington. “He has never seen me smoke anything. I probably won’t do it in front of him.”