TAMPA, Fla. – Rules implemented last year require kids and teens to be with an adult 21 or older if they want to attend “Family Day” at the fair. Kids and teenagers used to be able to go into the Florida State Fair by themselves or with friends before 6 p.m. for what used to be called “student night,” but the Hillsborough County Sheriff’s Office switched the name and required adult supervision to cut down on bad behavior.