GREENFIELD, Wis. — A confrontation at the Dan Jansen Family Fest on May 24 involving a 16-year-old, his family, festival security, and Greenfield police is raising questions about private-event dress codes, communication, and how festival rules are enforced during Wisconsin’s busy summer season. At the center of the incident is a festival policy requiring hoodies to be “worn down” at all times. That means that the “hood” portion of a sweatshirt …