A Florida ID is an alternative to a driver's license - it is an identification card issued to those who can not drive by the Florida Department of Motor Vehicles. It is issued when a person, usually a teenager, has waited a ridiculous amount of time to get their license, and has grown older to the point where they can't legally function without some form of identification. Therefore, they obtain one of these "Florida IDs" and use it in the same way they would use a driver's license for identification purposes.