The purpose of obtaining UM, or under-insured or uninsured motorist coverage, is to protect you if you get hit by somebody who either has no insurance or has a very small amount of insurance. So many times in Florida you see cases where people are hurt by drivers who don't even have insurance. If you have UM coverage, then you can make a reasonable financial recovery. If you don't have UM coverage and the person who hits you has no insurance and no money, you're out of luck.